20358190 has 16 divisors (see below), whose sum is σ = 36880992. Its totient is φ = 8090784.

The previous prime is 20358179. The next prime is 20358209. The reversal of 20358190 is 9185302.

It is a super-2 number, since 2×20358190² = 828911800152200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4914 + ... + 8053.

It is an arithmetic number, because the mean of its divisors is an integer number (2305062).

Almost surely, 2^20358190 is an apocalyptic number.

20358190 is a deficient number, since it is larger than the sum of its proper divisors (16522802).

20358190 is a wasteful number, since it uses less digits than its factorization.

20358190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13131.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 20358190 is about 4512.0050975149. The cubic root of 20358190 is about 273.0526449659.

The spelling of 20358190 in words is "twenty million, three hundred fifty-eight thousand, one hundred ninety".