45128718 has 16 divisors (see below), whose sum is σ = 100286160. Its totient is φ = 15042888.

The previous prime is 45128701. The next prime is 45128723. The reversal of 45128718 is 81782154.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417805 + ... + 417912.

It is an arithmetic number, because the mean of its divisors is an integer number (6267885).

Almost surely, 2^45128718 is an apocalyptic number.

45128718 is an abundant number, since it is smaller than the sum of its proper divisors (55157442).

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

45128718 is a wasteful number, since it uses less digits than its factorization.

45128718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835728 (or 835722 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 45128718 is about 6717.7911548365. The cubic root of 45128718 is about 356.0281455254.

The spelling of 45128718 in words is "forty-five million, one hundred twenty-eight thousand, seven hundred eighteen".