45809312 has 24 divisors (see below), whose sum is σ = 90500256. Its totient is φ = 22825152.

The previous prime is 45809297. The next prime is 45809327. The reversal of 45809312 is 21390854.

It is an interprime number because it is at equal distance from previous prime (45809297) and next prime (45809327).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7493 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (3770844).

Almost surely, 2^45809312 is an apocalyptic number.

It is an amenable number.

45809312 is a deficient number, since it is larger than the sum of its proper divisors (44690944).

45809312 is a wasteful number, since it uses less digits than its factorization.

45809312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980 (or 4972 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 45809312 is about 6768.2576783098. The cubic root of 45809312 is about 357.8089968714.

The spelling of 45809312 in words is "forty-five million, eight hundred nine thousand, three hundred twelve".