12742642 has 16 divisors (see below), whose sum is σ = 20907072. Its totient is φ = 5776720.

The previous prime is 12742637. The next prime is 12742651. The reversal of 12742642 is 24624721.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12742642.

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, 13923 + ... + 14809.

It is an arithmetic number, because the mean of its divisors is an integer number (1306692).

Almost surely, 2^12742642 is an apocalyptic number.

12742642 is a deficient number, since it is larger than the sum of its proper divisors (8164430).

12742642 is a wasteful number, since it uses less digits than its factorization.

12742642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553.

The product of its digits is 5376, while the sum is 28.

The square root of 12742642 is about 3569.6837394929. The cubic root of 12742642 is about 233.5714879076.

It can be divided in two parts, 1274 and 2642, that added together give a triangular number (3916 = T₈₈).

The spelling of 12742642 in words is "twelve million, seven hundred forty-two thousand, six hundred forty-two".