11724642 has 32 divisors (see below), whose sum is σ = 26956800. Its totient is φ = 3772944.

The previous prime is 11724619. The next prime is 11724677. The reversal of 11724642 is 24642711.

11724642 is a `hidden beast` number, since 1 + 17 + 2 + 4 + 642 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2178 + ... + 5309.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 2^11724642 is an apocalyptic number.

11724642 is an abundant number, since it is smaller than the sum of its proper divisors (15232158).

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

11724642 is a wasteful number, since it uses less digits than its factorization.

11724642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7527 (or 7521 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 11724642 is about 3424.1264579452. The cubic root of 11724642 is about 227.1781351909.

The spelling of 11724642 in words is "eleven million, seven hundred twenty-four thousand, six hundred forty-two".