13331690 has 8 divisors (see below), whose sum is σ = 23997060. Its totient is φ = 5332672.

The previous prime is 13331671. The next prime is 13331701. The reversal of 13331690 is 9613331.

It can be written as a sum of positive squares in 2 ways, for example, as 13082689 + 249001 = 3617^2 + 499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13331690² = 355467916512200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666575 + ... + 666594.

Almost surely, 2^13331690 is an apocalyptic number.

13331690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13331690 is a deficient number, since it is larger than the sum of its proper divisors (10665370).

13331690 is a wasteful number, since it uses less digits than its factorization.

13331690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333176.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 13331690 is about 3651.2586870831. The cubic root of 13331690 is about 237.1164779635.

The spelling of 13331690 in words is "thirteen million, three hundred thirty-one thousand, six hundred ninety".