2297940 has 24 divisors (see below), whose sum is σ = 6434400. Its totient is φ = 612768.

The previous prime is 2297923. The next prime is 2297951. The reversal of 2297940 is 497922.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19090 + ... + 19209.

It is an arithmetic number, because the mean of its divisors is an integer number (268100).

2^2297940 is an apocalyptic number.

2297940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2297940 is an abundant number, since it is smaller than the sum of its proper divisors (4136460).

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

2297940 is a wasteful number, since it uses less digits than its factorization.

2297940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38311 (or 38309 counting only the distinct ones).

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

The square root of 2297940 is about 1515.8957747814. The cubic root of 2297940 is about 131.9611915298.

The spelling of 2297940 in words is "two million, two hundred ninety-seven thousand, nine hundred forty".