11972320 has 24 divisors (see below), whose sum is σ = 28284984. Its totient is φ = 4788864.

The previous prime is 11972309. The next prime is 11972321. The reversal of 11972320 is 2327911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11972321) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 37254 + ... + 37573.

It is an arithmetic number, because the mean of its divisors is an integer number (1178541).

Almost surely, 2^11972320 is an apocalyptic number.

11972320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11972320 is an abundant number, since it is smaller than the sum of its proper divisors (16312664).

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

11972320 is an equidigital number, since it uses as much as digits as its factorization.

11972320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74842 (or 74834 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 11972320 is about 3460.1040446784. The cubic root of 11972320 is about 228.7666813758.

The spelling of 11972320 in words is "eleven million, nine hundred seventy-two thousand, three hundred twenty".