12404646 has 24 divisors (see below), whose sum is σ = 26942760. Its totient is φ = 4124736.

The previous prime is 12404629. The next prime is 12404647. The reversal of 12404646 is 64640421.

12404646 is a `hidden beast` number, since 12 + 4 + 0 + 4 + 646 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11790 + ... + 12798.

It is an arithmetic number, because the mean of its divisors is an integer number (1122615).

Almost surely, 2^12404646 is an apocalyptic number.

12404646 is an abundant number, since it is smaller than the sum of its proper divisors (14538114).

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

12404646 is a wasteful number, since it uses less digits than its factorization.

12404646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700 (or 1697 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 12404646 is about 3522.0229982213. The cubic root of 12404646 is about 231.4878093181.

It can be divided in two parts, 1240 and 4646, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 12404646 in words is "twelve million, four hundred four thousand, six hundred forty-six".