45090618 has 16 divisors (see below), whose sum is σ = 90558336. Its totient is φ = 14967360.

The previous prime is 45090607. The next prime is 45090623. The reversal of 45090618 is 81609054.

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, 14146 + ... + 17037.

It is an arithmetic number, because the mean of its divisors is an integer number (5659896).

Almost surely, 2^45090618 is an apocalyptic number.

45090618 is an abundant number, since it is smaller than the sum of its proper divisors (45467718).

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

45090618 is a wasteful number, since it uses less digits than its factorization.

45090618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31429.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 45090618 is about 6714.9548025285. The cubic root of 45090618 is about 355.9279248524.

The spelling of 45090618 in words is "forty-five million, ninety thousand, six hundred eighteen".