12642774 has 16 divisors (see below), whose sum is σ = 25874112. Its totient is φ = 4116168.

The previous prime is 12642767. The next prime is 12642787. The reversal of 12642774 is 47724621.

12642774 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24244 + ... + 24759.

It is an arithmetic number, because the mean of its divisors is an integer number (1617132).

Almost surely, 2^12642774 is an apocalyptic number.

12642774 is an abundant number, since it is smaller than the sum of its proper divisors (13231338).

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

12642774 is a wasteful number, since it uses less digits than its factorization.

12642774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49051.

The product of its digits is 18816, while the sum is 33.

The square root of 12642774 is about 3555.6678697539. The cubic root of 12642774 is about 232.9596963450.

The spelling of 12642774 in words is "twelve million, six hundred forty-two thousand, seven hundred seventy-four".