2257668372 has 48 divisors (see below), whose sum is σ = 5512381952. Its totient is φ = 718295040.

The previous prime is 2257668353. The next prime is 2257668373. The reversal of 2257668372 is 2738667522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257668373) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14413 + ... + 68724.

Almost surely, 2^2257668372 is an apocalyptic number.

It is an amenable number.

2257668372 is an abundant number, since it is smaller than the sum of its proper divisors (3254713580).

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

2257668372 is a wasteful number, since it uses less digits than its factorization.

2257668372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83248 (or 83246 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 48.

The square root of 2257668372 is about 47514.9278858760. The cubic root of 2257668372 is about 1311.8576624350.

The spelling of 2257668372 in words is "two billion, two hundred fifty-seven million, six hundred sixty-eight thousand, three hundred seventy-two".