2297904 has 60 divisors (see below), whose sum is σ = 6912504. Its totient is φ = 655872.

The previous prime is 2297903. The next prime is 2297909. The reversal of 2297904 is 4097922.

It is not an unprimeable number, because it can be changed into a prime (2297903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1864 + ... + 2840.

2^2297904 is an apocalyptic number.

2297904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2297904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3456252).

2297904 is an abundant number, since it is smaller than the sum of its proper divisors (4614600).

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

2297904 is a wasteful number, since it uses less digits than its factorization.

2297904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 2297904 is about 1515.8839005676. The cubic root of 2297904 is about 131.9605024158.

The spelling of 2297904 in words is "two million, two hundred ninety-seven thousand, nine hundred four".