45831939 has 16 divisors (see below), whose sum is σ = 64012032. Its totient is φ = 29113568.

The previous prime is 45831917. The next prime is 45831941. The reversal of 45831939 is 93913854.

It is a cyclic number.

It is not a de Polignac number, because 45831939 - 2⁹ = 45831427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45831939.

It is not an unprimeable number, because it can be changed into a prime (45831739) 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, 19084 + ... + 21350.

It is an arithmetic number, because the mean of its divisors is an integer number (4000752).

Almost surely, 2^45831939 is an apocalyptic number.

45831939 is a deficient number, since it is larger than the sum of its proper divisors (18180093).

45831939 is a wasteful number, since it uses less digits than its factorization.

45831939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586.

The product of its digits is 116640, while the sum is 42.

The square root of 45831939 is about 6769.9290247387. The cubic root of 45831939 is about 357.8678990988.

The spelling of 45831939 in words is "forty-five million, eight hundred thirty-one thousand, nine hundred thirty-nine".