2578372 has 6 divisors (see below), whose sum is σ = 4512158. Its totient is φ = 1289184.

The previous prime is 2578351. The next prime is 2578391. The reversal of 2578372 is 2738752.

It can be written as a sum of positive squares in only one way, i.e., 1359556 + 1218816 = 1166^2 + 1104^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322293 + ... + 322300.

2^2578372 is an apocalyptic number.

It is an amenable number.

2578372 is a deficient number, since it is larger than the sum of its proper divisors (1933786).

2578372 is a wasteful number, since it uses less digits than its factorization.

2578372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644597 (or 644595 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 2578372 is about 1605.7309861867. The cubic root of 2578372 is about 137.1245426519.

The spelling of 2578372 in words is "two million, five hundred seventy-eight thousand, three hundred seventy-two".