11992992 has 96 divisors (see below), whose sum is σ = 35308224. Its totient is φ = 3532800.

The previous prime is 11992987. The next prime is 11992993. The reversal of 11992992 is 29929911.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×11992992² = 287663714224128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11992993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43158 + ... + 43434.

It is an arithmetic number, because the mean of its divisors is an integer number (367794).

Almost surely, 2^11992992 is an apocalyptic number.

11992992 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 11992992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17654112).

11992992 is an abundant number, since it is smaller than the sum of its proper divisors (23315232).

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

11992992 is a wasteful number, since it uses less digits than its factorization.

11992992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 334 counting only the distinct ones).

The product of its digits is 26244, while the sum is 42.

The square root of 11992992 is about 3463.0899497414. The cubic root of 11992992 is about 228.8982722909.

It can be divided in two parts, 119929 and 92, that added together give a palindrome (120021).

The spelling of 11992992 in words is "eleven million, nine hundred ninety-two thousand, nine hundred ninety-two".