11662642 has 4 divisors (see below), whose sum is σ = 17493966. Its totient is φ = 5831320.

The previous prime is 11662639. The next prime is 11662657. The reversal of 11662642 is 24626611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11350161 + 312481 = 3369^2 + 559^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11662642.

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 as a sum of consecutive naturals, namely, 2915659 + ... + 2915662.

Almost surely, 2^11662642 is an apocalyptic number.

11662642 is a deficient number, since it is larger than the sum of its proper divisors (5831324).

11662642 is an equidigital number, since it uses as much as digits as its factorization.

11662642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831323.

The product of its digits is 3456, while the sum is 28.

The square root of 11662642 is about 3415.0610536270. The cubic root of 11662642 is about 226.7769873391.

The spelling of 11662642 in words is "eleven million, six hundred sixty-two thousand, six hundred forty-two".