11181942 has 16 divisors (see below), whose sum is σ = 24848880. Its totient is φ = 3727296.

The previous prime is 11181941. The next prime is 11181943. The reversal of 11181942 is 24918111.

It is an interprime number because it is at equal distance from previous prime (11181941) and next prime (11181943).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11181941) 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, 103483 + ... + 103590.

It is an arithmetic number, because the mean of its divisors is an integer number (1553055).

Almost surely, 2^11181942 is an apocalyptic number.

11181942 is an abundant number, since it is smaller than the sum of its proper divisors (13666938).

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

11181942 is a wasteful number, since it uses less digits than its factorization.

11181942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207084 (or 207078 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 11181942 is about 3343.9410879978. The cubic root of 11181942 is about 223.6174779899.

The spelling of 11181942 in words is "eleven million, one hundred eighty-one thousand, nine hundred forty-two".