13812690 has 32 divisors (see below), whose sum is σ = 33278976. Its totient is φ = 3669120.

The previous prime is 13812683. The next prime is 13812707. The reversal of 13812690 is 9621831.

13812690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13812690² = 381580810072200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 8655 + ... + 10125.

It is an arithmetic number, because the mean of its divisors is an integer number (1039968).

Almost surely, 2^13812690 is an apocalyptic number.

13812690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13812690 is an abundant number, since it is smaller than the sum of its proper divisors (19466286).

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

13812690 is a wasteful number, since it uses less digits than its factorization.

13812690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 13812690 is about 3716.5427483079. The cubic root of 13812690 is about 239.9345307535.

The spelling of 13812690 in words is "thirteen million, eight hundred twelve thousand, six hundred ninety".