45444523240 has 16 divisors (see below), whose sum is σ = 102250177380. Its totient is φ = 18177809280.

The previous prime is 45444523219. The next prime is 45444523249. The reversal of 45444523240 is 4232544454.

It can be written as a sum of positive squares in 2 ways, for example, as 44826205284 + 618317956 = 211722^2 + 24866^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45444523240.

It is not an unprimeable number, because it can be changed into a prime (45444523249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568056501 + ... + 568056580.

Almost surely, 2^45444523240 is an apocalyptic number.

45444523240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45444523240 is an abundant number, since it is smaller than the sum of its proper divisors (56805654140).

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

45444523240 is a wasteful number, since it uses less digits than its factorization.

45444523240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136113092 (or 1136113088 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 37.

The spelling of 45444523240 in words is "forty-five billion, four hundred forty-four million, five hundred twenty-three thousand, two hundred forty".