45744939 has 16 divisors (see below), whose sum is σ = 68701600. Its totient is φ = 30077568.

The previous prime is 45744931. The next prime is 45744967. The reversal of 45744939 is 93944754.

It is a happy number.

45744939 is a `hidden beast` number, since 4 + 574 + 49 + 39 = 666.

It is not a de Polignac number, because 45744939 - 2³ = 45744931 is a prime.

It is a super-2 number, since 2×45744939² = 4185198888227442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45744894 and 45744903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45744931) 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, 9634 + ... + 13575.

It is an arithmetic number, because the mean of its divisors is an integer number (4293850).

Almost surely, 2^45744939 is an apocalyptic number.

45744939 is a deficient number, since it is larger than the sum of its proper divisors (22956661).

45744939 is a wasteful number, since it uses less digits than its factorization.

45744939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23291 (or 23285 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 45744939 is about 6763.5004990020. The cubic root of 45744939 is about 357.6413160001.

The spelling of 45744939 in words is "forty-five million, seven hundred forty-four thousand, nine hundred thirty-nine".