12426690 has 32 divisors (see below), whose sum is σ = 30554496. Its totient is φ = 3232640.

The previous prime is 12426679. The next prime is 12426727. The reversal of 12426690 is 9662421.

It is a super-2 number, since 2×12426690² = 308845248712200, which contains 22 as substring.

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, 3822 + ... + 6281.

It is an arithmetic number, because the mean of its divisors is an integer number (954828).

Almost surely, 2^12426690 is an apocalyptic number.

12426690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12426690 is an abundant number, since it is smaller than the sum of its proper divisors (18127806).

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

12426690 is a wasteful number, since it uses less digits than its factorization.

12426690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10154.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 12426690 is about 3525.1510605930. The cubic root of 12426690 is about 231.6248519899.

The spelling of 12426690 in words is "twelve million, four hundred twenty-six thousand, six hundred ninety".