45443021240 has 64 divisors (see below), whose sum is σ = 108925084800. Its totient is φ = 17013013632.

The previous prime is 45443021237. The next prime is 45443021251. The reversal of 45443021240 is 4212034454.

It is a super-2 number, since 2×45443021240² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297122 + ... + 423281.

It is an arithmetic number, because the mean of its divisors is an integer number (1701954450).

Almost surely, 2^45443021240 is an apocalyptic number.

45443021240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45443021240 is an abundant number, since it is smaller than the sum of its proper divisors (63482063560).

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

45443021240 is a wasteful number, since it uses less digits than its factorization.

45443021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720516 (or 720512 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 45443021240 its reverse (4212034454), we get a palindrome (49655055694).

The spelling of 45443021240 in words is "forty-five billion, four hundred forty-three million, twenty-one thousand, two hundred forty".