2305972 has 6 divisors (see below), whose sum is σ = 4035458. Its totient is φ = 1152984.

The previous prime is 2305969. The next prime is 2305987. The reversal of 2305972 is 2795032.

It can be written as a sum of positive squares in only one way, i.e., 2149156 + 156816 = 1466^2 + 396^2 .

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 2305972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288243 + ... + 288250.

2^2305972 is an apocalyptic number.

It is an amenable number.

2305972 is a deficient number, since it is larger than the sum of its proper divisors (1729486).

2305972 is a wasteful number, since it uses less digits than its factorization.

2305972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576497 (or 576495 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 2305972 is about 1518.5427224810. The cubic root of 2305972 is about 132.1147609263.

The spelling of 2305972 in words is "two million, three hundred five thousand, nine hundred seventy-two".