45021236 has 24 divisors (see below), whose sum is σ = 89840520. Its totient is φ = 19556352.

The previous prime is 45021227. The next prime is 45021257. The reversal of 45021236 is 63212054.

It can be written as a sum of positive squares in 4 ways, for example, as 211600 + 44809636 = 460^2 + 6694^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24581 + ... + 26348.

It is an arithmetic number, because the mean of its divisors is an integer number (3743355).

Almost surely, 2^45021236 is an apocalyptic number.

It is an amenable number.

45021236 is a deficient number, since it is larger than the sum of its proper divisors (44819284).

45021236 is a wasteful number, since it uses less digits than its factorization.

45021236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50963 (or 50961 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 45021236 is about 6709.7865837894. The cubic root of 45021236 is about 355.7452728990.

The spelling of 45021236 in words is "forty-five million, twenty-one thousand, two hundred thirty-six".