2640934 has 8 divisors (see below), whose sum is σ = 4026528. Its totient is φ = 1298760.

The previous prime is 2640919. The next prime is 2640941. The reversal of 2640934 is 4390462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10702 + ... + 10945.

It is an arithmetic number, because the mean of its divisors is an integer number (503316).

2^2640934 is an apocalyptic number.

2640934 is a deficient number, since it is larger than the sum of its proper divisors (1385594).

2640934 is a wasteful number, since it uses less digits than its factorization.

2640934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21710.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2640934 is about 1625.0950741418. The cubic root of 2640934 is about 138.2247615050.

The spelling of 2640934 in words is "two million, six hundred forty thousand, nine hundred thirty-four".