45605538 has 32 divisors (see below), whose sum is σ = 110560320. Its totient is φ = 13819680.

The previous prime is 45605537. The next prime is 45605551. The reversal of 45605538 is 83550654.

45605538 is a `hidden beast` number, since 45 + 60 + 553 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (45605533) 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, 37795 + ... + 38982.

It is an arithmetic number, because the mean of its divisors is an integer number (3455010).

Almost surely, 2^45605538 is an apocalyptic number.

45605538 is an abundant number, since it is smaller than the sum of its proper divisors (64954782).

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

45605538 is a wasteful number, since it uses less digits than its factorization.

45605538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76799 (or 76793 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 45605538 is about 6753.1872475151. The cubic root of 45605538 is about 357.2776598479.

Subtracting 45605538 from its reverse (83550654), we obtain a triangular number (37945116 = T₈₇₁₁).

The spelling of 45605538 in words is "forty-five million, six hundred five thousand, five hundred thirty-eight".