45012992 has 48 divisors (see below), whose sum is σ = 93038400. Its totient is φ = 21749760.

The previous prime is 45012983. The next prime is 45012997. The reversal of 45012992 is 29921054.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45012997) 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, 63134 + ... + 63842.

It is an arithmetic number, because the mean of its divisors is an integer number (1938300).

Almost surely, 2^45012992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45012992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46519200).

45012992 is an abundant number, since it is smaller than the sum of its proper divisors (48025408).

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

45012992 is an equidigital number, since it uses as much as digits as its factorization.

45012992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 45012992 is about 6709.1722291204. The cubic root of 45012992 is about 355.7235576426.

The spelling of 45012992 in words is "forty-five million, twelve thousand, nine hundred ninety-two".