11591642 has 8 divisors (see below), whose sum is σ = 17443956. Its totient is φ = 5776992.

The previous prime is 11591641. The next prime is 11591651. The reversal of 11591642 is 24619511.

It can be written as a sum of positive squares in 2 ways, for example, as 9247681 + 2343961 = 3041^2 + 1531^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11591641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8633 + ... + 9884.

Almost surely, 2^11591642 is an apocalyptic number.

11591642 is a deficient number, since it is larger than the sum of its proper divisors (5852314).

11591642 is a wasteful number, since it uses less digits than its factorization.

11591642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18832.

The product of its digits is 2160, while the sum is 29.

The square root of 11591642 is about 3404.6500554389. The cubic root of 11591642 is about 226.3158582429.

The spelling of 11591642 in words is "eleven million, five hundred ninety-one thousand, six hundred forty-two".