45140256 has 72 divisors (see below), whose sum is σ = 146712384. Its totient is φ = 12896640.

The previous prime is 45140231. The next prime is 45140261. The reversal of 45140256 is 65204154.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9180 + ... + 13211.

It is an arithmetic number, because the mean of its divisors is an integer number (2037672).

Almost surely, 2^45140256 is an apocalyptic number.

It is an amenable number.

45140256 is an abundant number, since it is smaller than the sum of its proper divisors (101572128).

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

45140256 is a wasteful number, since it uses less digits than its factorization.

45140256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22414 (or 22403 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 45140256 is about 6718.6498643701. The cubic root of 45140256 is about 356.0584846893.

The spelling of 45140256 in words is "forty-five million, one hundred forty thousand, two hundred fifty-six".