11731392 has 140 divisors (see below), whose sum is σ = 36389056. Its totient is φ = 3732480.

The previous prime is 11731387. The next prime is 11731393. The reversal of 11731392 is 29313711.

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 (11731393) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 160668 + ... + 160740.

Almost surely, 2^11731392 is an apocalyptic number.

11731392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11731392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18194528).

11731392 is an abundant number, since it is smaller than the sum of its proper divisors (24657664).

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

11731392 is an equidigital number, since it uses as much as digits as its factorization.

11731392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 109 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 11731392 is about 3425.1119689727. Note that the first 3 decimals coincide. The cubic root of 11731392 is about 227.2217231097.

The spelling of 11731392 in words is "eleven million, seven hundred thirty-one thousand, three hundred ninety-two".