11642239 has 8 divisors (see below), whose sum is σ = 13329440. Its totient is φ = 9961056.

The previous prime is 11642219. The next prime is 11642243. The reversal of 11642239 is 93224611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11642239 - 2⁹ = 11641727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11642219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3997 + ... + 6265.

It is an arithmetic number, because the mean of its divisors is an integer number (1666180).

Almost surely, 2^11642239 is an apocalyptic number.

11642239 is a deficient number, since it is larger than the sum of its proper divisors (1687201).

11642239 is an equidigital number, since it uses as much as digits as its factorization.

11642239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009.

The product of its digits is 2592, while the sum is 28.

The square root of 11642239 is about 3412.0725373298. The cubic root of 11642239 is about 226.6446665018.

It can be divided in two parts, 11642 and 239, that added together give a square (11881 = 109²).

The spelling of 11642239 in words is "eleven million, six hundred forty-two thousand, two hundred thirty-nine".