20950190 has 16 divisors (see below), whose sum is σ = 37892880. Its totient is φ = 8339520.

The previous prime is 20950187. The next prime is 20950201. The reversal of 20950190 is 9105902.

It is a happy number.

It is a super-2 number, since 2×20950190² = 877820922072200, which contains 22 as substring.

It is a Curzon number.

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, 2855 + ... + 7074.

It is an arithmetic number, because the mean of its divisors is an integer number (2368305).

Almost surely, 2^20950190 is an apocalyptic number.

20950190 is a deficient number, since it is larger than the sum of its proper divisors (16942690).

20950190 is a wasteful number, since it uses less digits than its factorization.

20950190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10147.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 20950190 is about 4577.1377519144. The cubic root of 20950190 is about 275.6741147694.

The spelling of 20950190 in words is "twenty million, nine hundred fifty thousand, one hundred ninety".