13442690 has 32 divisors (see below), whose sum is σ = 25704000. Its totient is φ = 5047488.

The previous prime is 13442687. The next prime is 13442701. The reversal of 13442690 is 9624431.

It is a super-2 number, since 2×13442690² = 361411828872200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26156 + ... + 26664.

It is an arithmetic number, because the mean of its divisors is an integer number (803250).

Almost surely, 2^13442690 is an apocalyptic number.

13442690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13442690 is a deficient number, since it is larger than the sum of its proper divisors (12261310).

13442690 is a wasteful number, since it uses less digits than its factorization.

13442690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 13442690 is about 3666.4274164369. The cubic root of 13442690 is about 237.7727393044.

It can be divided in two parts, 134 and 42690, that added together give a palindrome (42824).

The spelling of 13442690 in words is "thirteen million, four hundred forty-two thousand, six hundred ninety".