13632890 has 16 divisors (see below), whose sum is σ = 24942600. Its totient is φ = 5363520.

The previous prime is 13632889. The next prime is 13632917. The reversal of 13632890 is 9823631.

It can be written as a sum of positive squares in 4 ways, for example, as 4566769 + 9066121 = 2137^2 + 3011^2 .

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, 10565 + ... + 11784.

Almost surely, 2^13632890 is an apocalyptic number.

13632890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13632890 is a deficient number, since it is larger than the sum of its proper divisors (11309710).

13632890 is a wasteful number, since it uses less digits than its factorization.

13632890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22417.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 13632890 is about 3692.2743668368. The cubic root of 13632890 is about 238.8889033912. Note that the first 3 decimals are identical.

The spelling of 13632890 in words is "thirteen million, six hundred thirty-two thousand, eight hundred ninety".