20144190 has 32 divisors (see below), whose sum is σ = 52742016. Its totient is φ = 4883360.

The previous prime is 20144143. The next prime is 20144209. The reversal of 20144190 is 9144102.

It is a super-2 number, since 2×20144190² = 811576781512200, 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 15 ways as a sum of consecutive naturals, for example, 30192 + ... + 30851.

It is an arithmetic number, because the mean of its divisors is an integer number (1648188).

Almost surely, 2^20144190 is an apocalyptic number.

20144190 is an abundant number, since it is smaller than the sum of its proper divisors (32597826).

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

20144190 is a wasteful number, since it uses less digits than its factorization.

20144190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61064.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 20144190 is about 4488.2279353883. The cubic root of 20144190 is about 272.0925200687.

Adding to 20144190 its reverse (9144102), we get a palindrome (29288292).

The spelling of 20144190 in words is "twenty million, one hundred forty-four thousand, one hundred ninety".