45257808 has 80 divisors (see below), whose sum is σ = 127224000. Its totient is φ = 13805568.

The previous prime is 45257789. The next prime is 45257831. The reversal of 45257808 is 80875254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29443 + ... + 30941.

It is an arithmetic number, because the mean of its divisors is an integer number (1590300).

Almost surely, 2^45257808 is an apocalyptic number.

45257808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45257808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63612000).

45257808 is an abundant number, since it is smaller than the sum of its proper divisors (81966192).

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

45257808 is a wasteful number, since it uses less digits than its factorization.

45257808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 45257808 is about 6727.3923625726. The cubic root of 45257808 is about 356.3672933566.

The spelling of 45257808 in words is "forty-five million, two hundred fifty-seven thousand, eight hundred eight".