45388737 has 6 divisors (see below), whose sum is σ = 65561522. Its totient is φ = 30259152.

The previous prime is 45388709. The next prime is 45388747. The reversal of 45388737 is 73788354.

45388737 is a `hidden beast` number, since 4 + 538 + 87 + 37 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31371201 + 14017536 = 5601^2 + 3744^2 .

It is not a de Polignac number, because 45388737 - 2⁸ = 45388481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45388692 and 45388701.

It is not an unprimeable number, because it can be changed into a prime (45388747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2521588 + ... + 2521605.

Almost surely, 2^45388737 is an apocalyptic number.

It is an amenable number.

45388737 is a deficient number, since it is larger than the sum of its proper divisors (20172785).

45388737 is a wasteful number, since it uses less digits than its factorization.

45388737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5043199 (or 5043196 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 45388737 is about 6737.1163712675. The cubic root of 45388737 is about 356.7106145320.

The spelling of 45388737 in words is "forty-five million, three hundred eighty-eight thousand, seven hundred thirty-seven".