12657426 has 8 divisors (see below), whose sum is σ = 25314864. Its totient is φ = 4219140.

The previous prime is 12657419. The next prime is 12657443. The reversal of 12657426 is 62475621.

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

12657426 is an admirable 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, 1054780 + ... + 1054791.

It is an arithmetic number, because the mean of its divisors is an integer number (3164358).

Almost surely, 2^12657426 is an apocalyptic number.

12657426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12657426 is a wasteful number, since it uses less digits than its factorization.

12657426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109576.

The product of its digits is 20160, while the sum is 33.

The square root of 12657426 is about 3557.7276455625. The cubic root of 12657426 is about 233.0496557090.

The spelling of 12657426 in words is "twelve million, six hundred fifty-seven thousand, four hundred twenty-six".