2537864 has 16 divisors (see below), whose sum is σ = 5438400. Its totient is φ = 1087632.

The previous prime is 2537851. The next prime is 2537869. The reversal of 2537864 is 4687352.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2537869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22604 + ... + 22715.

It is an arithmetic number, because the mean of its divisors is an integer number (339900).

2^2537864 is an apocalyptic number.

It is an amenable number.

2537864 is an abundant number, since it is smaller than the sum of its proper divisors (2900536).

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

2537864 is a wasteful number, since it uses less digits than its factorization.

2537864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45332 (or 45328 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 2537864 is about 1593.0674813077. The cubic root of 2537864 is about 136.4026418250.

The spelling of 2537864 in words is "two million, five hundred thirty-seven thousand, eight hundred sixty-four".