11191944 has 16 divisors (see below), whose sum is σ = 27979920. Its totient is φ = 3730640.

The previous prime is 11191937. The next prime is 11191951. The reversal of 11191944 is 44919111.

It is an interprime number because it is at equal distance from previous prime (11191937) and next prime (11191951).

It is a super-2 number, since 2×11191944² = 250519220998272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233142 + ... + 233189.

It is an arithmetic number, because the mean of its divisors is an integer number (1748745).

Almost surely, 2^11191944 is an apocalyptic number.

It is an amenable number.

11191944 is an abundant number, since it is smaller than the sum of its proper divisors (16787976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11191944 is a wasteful number, since it uses less digits than its factorization.

11191944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466340 (or 466336 counting only the distinct ones).

The product of its digits is 1296, while the sum is 30.

The square root of 11191944 is about 3345.4362944166. The cubic root of 11191944 is about 223.6841317511.

The spelling of 11191944 in words is "eleven million, one hundred ninety-one thousand, nine hundred forty-four".