45612640 has 24 divisors (see below), whose sum is σ = 107760240. Its totient is φ = 18244992.

The previous prime is 45612599. The next prime is 45612647. The reversal of 45612640 is 4621654.

It is a junction number, because it is equal to n+sod(n) for n = 45612599 and 45612608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45612647) 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, 142380 + ... + 142699.

It is an arithmetic number, because the mean of its divisors is an integer number (4490010).

Almost surely, 2^45612640 is an apocalyptic number.

45612640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45612640 is an abundant number, since it is smaller than the sum of its proper divisors (62147600).

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

45612640 is a wasteful number, since it uses less digits than its factorization.

45612640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285094 (or 285086 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 45612640 is about 6753.7130528325. The cubic root of 45612640 is about 357.2962047758.

The spelling of 45612640 in words is "forty-five million, six hundred twelve thousand, six hundred forty".