13638190 has 16 divisors (see below), whose sum is σ = 24654960. Its totient is φ = 5431680.

The previous prime is 13638187. The next prime is 13638203. The reversal of 13638190 is 9183631.

It is a super-2 number, since 2×13638190² = 372000452952200, 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, 420 + ... + 5239.

It is an arithmetic number, because the mean of its divisors is an integer number (1540935).

Almost surely, 2^13638190 is an apocalyptic number.

13638190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13638190 is a deficient number, since it is larger than the sum of its proper divisors (11016770).

13638190 is a wasteful number, since it uses less digits than its factorization.

13638190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 13638190 is about 3692.9920119058. The cubic root of 13638190 is about 238.9198566508.

The spelling of 13638190 in words is "thirteen million, six hundred thirty-eight thousand, one hundred ninety".