20365190 has 16 divisors (see below), whose sum is σ = 36815040. Its totient is φ = 8111040.

The previous prime is 20365157. The next prime is 20365193. The reversal of 20365190 is 9156302.

It is a super-2 number, since 2×20365190² = 829481927472200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20365193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1871 + ... + 6650.

It is an arithmetic number, because the mean of its divisors is an integer number (2300940).

Almost surely, 2^20365190 is an apocalyptic number.

20365190 is a deficient number, since it is larger than the sum of its proper divisors (16449850).

20365190 is a wasteful number, since it uses less digits than its factorization.

20365190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8767.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 20365190 is about 4512.7807391895. The cubic root of 20365190 is about 273.0839370321.

The spelling of 20365190 in words is "twenty million, three hundred sixty-five thousand, one hundred ninety".