11631442 has 4 divisors (see below), whose sum is σ = 17447166. Its totient is φ = 5815720.

The previous prime is 11631427. The next prime is 11631443. The reversal of 11631442 is 24413611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24413611 = 239 ⋅102149.

It can be written as a sum of positive squares in only one way, i.e., 7667361 + 3964081 = 2769^2 + 1991^2 .

It is not an unprimeable number, because it can be changed into a prime (11631443) by changing a digit.

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, 2907859 + ... + 2907862.

Almost surely, 2^11631442 is an apocalyptic number.

11631442 is a deficient number, since it is larger than the sum of its proper divisors (5815724).

11631442 is an equidigital number, since it uses as much as digits as its factorization.

11631442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815723.

The product of its digits is 576, while the sum is 22.

The square root of 11631442 is about 3410.4899941211. The cubic root of 11631442 is about 226.5745814913.

The spelling of 11631442 in words is "eleven million, six hundred thirty-one thousand, four hundred forty-two".