45624312440 has 64 divisors (see below), whose sum is σ = 117399628800. Its totient is φ = 15631959168.

The previous prime is 45624312439. The next prime is 45624312443. The reversal of 45624312440 is 4421342654.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 45624312440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45624312443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361571 + ... + 471149.

It is an arithmetic number, because the mean of its divisors is an integer number (1834369200).

Almost surely, 2^45624312440 is an apocalyptic number.

45624312440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45624312440 is an abundant number, since it is smaller than the sum of its proper divisors (71775316360).

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

45624312440 is a wasteful number, since it uses less digits than its factorization.

45624312440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111084 (or 111080 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The spelling of 45624312440 in words is "forty-five billion, six hundred twenty-four million, three hundred twelve thousand, four hundred forty".