45690639 has 12 divisors (see below), whose sum is σ = 62378136. Its totient is φ = 29748432.

The previous prime is 45690629. The next prime is 45690641. The reversal of 45690639 is 93609654.

It is not a de Polignac number, because 45690639 - 2¹⁷ = 45559567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45690639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45690629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1429 + ... + 9665.

It is an arithmetic number, because the mean of its divisors is an integer number (5198178).

Almost surely, 2^45690639 is an apocalyptic number.

45690639 is a deficient number, since it is larger than the sum of its proper divisors (16687497).

45690639 is an equidigital number, since it uses as much as digits as its factorization.

45690639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326 (or 8283 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 45690639 is about 6759.4851135275. The cubic root of 45690639 is about 357.4997512509.

The spelling of 45690639 in words is "forty-five million, six hundred ninety thousand, six hundred thirty-nine".