45538318 has 32 divisors (see below), whose sum is σ = 81082368. Its totient is φ = 18770400.

The previous prime is 45538313. The next prime is 45538319. The reversal of 45538318 is 81383554.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45538313) 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, 137413 + ... + 137743.

It is an arithmetic number, because the mean of its divisors is an integer number (2533824).

Almost surely, 2^45538318 is an apocalyptic number.

45538318 is a deficient number, since it is larger than the sum of its proper divisors (35544050).

45538318 is a wasteful number, since it uses less digits than its factorization.

45538318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688.

The product of its digits is 57600, while the sum is 37.

The square root of 45538318 is about 6748.2085030029. The cubic root of 45538318 is about 357.1020378033.

The spelling of 45538318 in words is "forty-five million, five hundred thirty-eight thousand, three hundred eighteen".