45728518 has 32 divisors (see below), whose sum is σ = 76930560. Its totient is φ = 20211360.

The previous prime is 45728513. The next prime is 45728519. The reversal of 45728518 is 81582754.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45728513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144096 + ... + 144412.

It is an arithmetic number, because the mean of its divisors is an integer number (2404080).

Almost surely, 2^45728518 is an apocalyptic number.

45728518 is a deficient number, since it is larger than the sum of its proper divisors (31202042).

45728518 is a wasteful number, since it uses less digits than its factorization.

45728518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492.

The product of its digits is 89600, while the sum is 40.

The square root of 45728518 is about 6762.2864476448. The cubic root of 45728518 is about 357.5985168691.

The spelling of 45728518 in words is "forty-five million, seven hundred twenty-eight thousand, five hundred eighteen".