45012590 has 32 divisors (see below), whose sum is σ = 92836800. Its totient is φ = 15393024.

The previous prime is 45012581. The next prime is 45012599. The reversal of 45012590 is 9521054.

It is an interprime number because it is at equal distance from previous prime (45012581) and next prime (45012599).

It is a super-2 number, since 2×45012590² = 4052266517016200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45012599) 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, 42386 + ... + 43434.

It is an arithmetic number, because the mean of its divisors is an integer number (2901150).

Almost surely, 2^45012590 is an apocalyptic number.

45012590 is an abundant number, since it is smaller than the sum of its proper divisors (47824210).

45012590 is a wasteful number, since it uses less digits than its factorization.

45012590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 45012590 is about 6709.1422700670. The cubic root of 45012590 is about 355.7224986794.

The spelling of 45012590 in words is "forty-five million, twelve thousand, five hundred ninety".