11172942 has 48 divisors (see below), whose sum is σ = 26805168. Its totient is φ = 3335040.

The previous prime is 11172929. The next prime is 11172979. The reversal of 11172942 is 24927111.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 14068 + ... + 14840.

It is an arithmetic number, because the mean of its divisors is an integer number (558441).

Almost surely, 2^11172942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11172942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13402584).

11172942 is an abundant number, since it is smaller than the sum of its proper divisors (15632226).

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

11172942 is a wasteful number, since it uses less digits than its factorization.

11172942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 862 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 11172942 is about 3342.5950996195. The cubic root of 11172942 is about 223.5574676180.

The spelling of 11172942 in words is "eleven million, one hundred seventy-two thousand, nine hundred forty-two".