45636890 has 16 divisors (see below), whose sum is σ = 88465608. Its totient is φ = 16850496.

The previous prime is 45636847. The next prime is 45636911. The reversal of 45636890 is 9863654.

45636890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 30481441 + 15155449 = 5521^2 + 3893^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175397 + ... + 175656.

Almost surely, 2^45636890 is an apocalyptic number.

45636890 is a deficient number, since it is larger than the sum of its proper divisors (42828718).

45636890 is a wasteful number, since it uses less digits than its factorization.

45636890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351073.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 45636890 is about 6755.5081230060. The cubic root of 45636890 is about 357.3595125046.

The spelling of 45636890 in words is "forty-five million, six hundred thirty-six thousand, eight hundred ninety".