11442391 has 8 divisors (see below), whose sum is σ = 11635344. Its totient is φ = 11251200.

The previous prime is 11442383. The next prime is 11442413. The reversal of 11442391 is 19324411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11442391 - 2³ = 11442383 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 (11442311) 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, 19200 + ... + 19786.

It is an arithmetic number, because the mean of its divisors is an integer number (1454418).

Almost surely, 2^11442391 is an apocalyptic number.

11442391 is a deficient number, since it is larger than the sum of its proper divisors (192953).

11442391 is a wasteful number, since it uses less digits than its factorization.

11442391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881.

The product of its digits is 864, while the sum is 25.

The square root of 11442391 is about 3382.6603435757. The cubic root of 11442391 is about 225.3403310522.

The spelling of 11442391 in words is "eleven million, four hundred forty-two thousand, three hundred ninety-one".