45881856 has 80 divisors (see below), whose sum is σ = 135854400. Its totient is φ = 15289344.

The previous prime is 45881851. The next prime is 45881863. The reversal of 45881856 is 65818854.

45881856 is a `hidden beast` number, since 4 + 588 + 18 + 56 = 666.

It is not an unprimeable number, because it can be changed into a prime (45881851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12165 + ... + 15483.

It is an arithmetic number, because the mean of its divisors is an integer number (1698180).

Almost surely, 2^45881856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45881856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67927200).

45881856 is an abundant number, since it is smaller than the sum of its proper divisors (89972544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45881856 is an equidigital number, since it uses as much as digits as its factorization.

45881856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346 (or 3324 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 45881856 is about 6773.6146923190. The cubic root of 45881856 is about 357.9977736720.

The spelling of 45881856 in words is "forty-five million, eight hundred eighty-one thousand, eight hundred fifty-six".