2309972 has 12 divisors (see below), whose sum is σ = 4620000. Its totient is φ = 989976.

The previous prime is 2309969. The next prime is 2309999. The reversal of 2309972 is 2799032.

2309972 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

2309972 is an admirable number.

2309972 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41222 + ... + 41277.

It is an arithmetic number, because the mean of its divisors is an integer number (385000).

2^2309972 is an apocalyptic number.

It is an amenable number.

2309972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2309972 is a wasteful number, since it uses less digits than its factorization.

2309972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82510 (or 82508 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 2309972 is about 1519.8592040054. The cubic root of 2309972 is about 132.1911067186.

The spelling of 2309972 in words is "two million, three hundred nine thousand, nine hundred seventy-two".