450204502440 has 128 divisors (see below), whose sum is σ = 1683881809920. Its totient is φ = 93548985600.

The previous prime is 450204502439. The next prime is 450204502441. The reversal of 450204502440 is 44205402054.

It is an interprime number because it is at equal distance from previous prime (450204502439) and next prime (450204502441).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 450204502398 and 450204502407.

It is not an unprimeable number, because it can be changed into a prime (450204502441) 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, 24352476 + ... + 24370955.

It is an arithmetic number, because the mean of its divisors is an integer number (13155326640).

Almost surely, 2^450204502440 is an apocalyptic number.

450204502440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450204502440 is an abundant number, since it is smaller than the sum of its proper divisors (1233677307480).

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

450204502440 is a wasteful number, since it uses less digits than its factorization.

450204502440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48723463 (or 48723459 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 450204502440 its reverse (44205402054), we get a palindrome (494409904494).

The spelling of 450204502440 in words is "four hundred fifty billion, two hundred four million, five hundred two thousand, four hundred forty".