2645902 has 40 divisors (see below), whose sum is σ = 5041800. Its totient is φ = 1037232.

The previous prime is 2645899. The next prime is 2645911. The reversal of 2645902 is 2095462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 91224 + ... + 91252.

It is an arithmetic number, because the mean of its divisors is an integer number (126045).

2^2645902 is an apocalyptic number.

2645902 is a deficient number, since it is larger than the sum of its proper divisors (2395898).

2645902 is an equidigital number, since it uses as much as digits as its factorization.

2645902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2645902 is about 1626.6228819244. The cubic root of 2645902 is about 138.3113811717.

The spelling of 2645902 in words is "two million, six hundred forty-five thousand, nine hundred two".