45299618 has 72 divisors (see below), whose sum is σ = 90335196. Its totient is φ = 16873920.

The previous prime is 45299603. The next prime is 45299621. The reversal of 45299618 is 81699254.

It can be written as a sum of positive squares in 2 ways, for example, as 45252529 + 47089 = 6727^2 + 217^2 .

Its product of digits (155520) is a multiple of the sum of its prime divisors (90).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1224296 + ... + 1224332.

Almost surely, 2^45299618 is an apocalyptic number.

45299618 is a deficient number, since it is larger than the sum of its proper divisors (45035578).

45299618 is a wasteful number, since it uses less digits than its factorization.

45299618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 90 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 45299618 is about 6730.4990899635. The cubic root of 45299618 is about 356.4769991462.

The spelling of 45299618 in words is "forty-five million, two hundred ninety-nine thousand, six hundred eighteen".