2391272 has 16 divisors (see below), whose sum is σ = 4828740. Its totient is φ = 1103616.

The previous prime is 2391269. The next prime is 2391281. The reversal of 2391272 is 2721932.

2391272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2390116 + 1156 = 1546^2 + 34^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11393 + ... + 11600.

2^2391272 is an apocalyptic number.

It is an amenable number.

2391272 is an abundant number, since it is smaller than the sum of its proper divisors (2437468).

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

2391272 is a wasteful number, since it uses less digits than its factorization.

2391272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23012 (or 23008 counting only the distinct ones).

The product of its digits is 1512, while the sum is 26.

The square root of 2391272 is about 1546.3738228514. The cubic root of 2391272 is about 133.7240925743.

The spelling of 2391272 in words is "two million, three hundred ninety-one thousand, two hundred seventy-two".