45451025330440 has 128 divisors (see below), whose sum is σ = 110804673893760. Its totient is φ = 16712118226944.

The previous prime is 45451025330377. The next prime is 45451025330441. The reversal of 45451025330440 is 4403352015454.

It is a super-2 number, since 2×45451025330440² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 45451025330393 and 45451025330402.

It is not an unprimeable number, because it can be changed into a prime (45451025330441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 751934859 + ... + 751995301.

It is an arithmetic number, because the mean of its divisors is an integer number (865661514795).

Almost surely, 2^{45451025330440} is an apocalyptic number.

45451025330440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45451025330440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55402336946880).

45451025330440 is an abundant number, since it is smaller than the sum of its proper divisors (65353648563320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45451025330440 is a wasteful number, since it uses less digits than its factorization.

45451025330440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86231 (or 86227 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 45451025330440 its reverse (4403352015454), we get a palindrome (49854377345894).

The spelling of 45451025330440 in words is "forty-five trillion, four hundred fifty-one billion, twenty-five million, three hundred thirty thousand, four hundred forty".