2645694 has 12 divisors (see below), whose sum is σ = 5732376. Its totient is φ = 881892.

The previous prime is 2645681. The next prime is 2645701. The reversal of 2645694 is 4965462.

2645694 is a `hidden beast` number, since 2 + 645 + 6 + 9 + 4 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73474 + ... + 73509.

It is an arithmetic number, because the mean of its divisors is an integer number (477698).

2^2645694 is an apocalyptic number.

2645694 is an abundant number, since it is smaller than the sum of its proper divisors (3086682).

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

2645694 is a wasteful number, since it uses less digits than its factorization.

2645694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146991 (or 146988 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 2645694 is about 1626.5589445206. The cubic root of 2645694 is about 138.3077567591.

The spelling of 2645694 in words is "two million, six hundred forty-five thousand, six hundred ninety-four".