12742668 has 18 divisors (see below), whose sum is σ = 32210724. Its totient is φ = 4247544.

The previous prime is 12742651. The next prime is 12742679. The reversal of 12742668 is 86624721.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 353963 = 12742668 / (1 + 2 + 7 + 4 + 2 + 6 + 6 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 176946 + ... + 177017.

Almost surely, 2^12742668 is an apocalyptic number.

12742668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12742668 is an abundant number, since it is smaller than the sum of its proper divisors (19468056).

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

12742668 is a wasteful number, since it uses less digits than its factorization.

12742668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353973 (or 353968 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 12742668 is about 3569.6873812702. The cubic root of 12742668 is about 233.5716467667.

The spelling of 12742668 in words is "twelve million, seven hundred forty-two thousand, six hundred sixty-eight".