20045358 has 24 divisors (see below), whose sum is σ = 43768296. Its totient is φ = 6630000.

The previous prime is 20045339. The next prime is 20045371. The reversal of 20045358 is 85354002.

20045358 is a `hidden beast` number, since 200 + 453 + 5 + 8 = 666.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1893 + ... + 6608.

It is an arithmetic number, because the mean of its divisors is an integer number (1823679).

Almost surely, 2^20045358 is an apocalyptic number.

20045358 is an abundant number, since it is smaller than the sum of its proper divisors (23722938).

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

20045358 is a wasteful number, since it uses less digits than its factorization.

20045358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8640 (or 8637 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 20045358 is about 4477.2042615900. The cubic root of 20045358 is about 271.6468076533.

The spelling of 20045358 in words is "twenty million, forty-five thousand, three hundred fifty-eight".