11642 has 4 divisors (see below), whose sum is σ = 17466. Its totient is φ = 5820.

The previous prime is 11633. The next prime is 11657. The reversal of 11642 is 24611.

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., 7921 + 3721 = 89^2 + 61^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 11642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2909 + ... + 2912.

2¹¹⁶⁴² is an apocalyptic number.

11642 is a deficient number, since it is larger than the sum of its proper divisors (5824).

11642 is an equidigital number, since it uses as much as digits as its factorization.

11642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823.

The product of its digits is 48, while the sum is 14.

The square root of 11642 is about 107.8981000760. The cubic root of 11642 is about 22.6643115585.

Subtracting from 11642 its sum of digits (14), we obtain a triangular number (11628 = T₁₅₂).

The spelling of 11642 in words is "eleven thousand, six hundred forty-two".