3294640 has 20 divisors (see below), whose sum is σ = 7660224. Its totient is φ = 1317824.

The previous prime is 3294631. The next prime is 3294659. The reversal of 3294640 is 464923.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 3294599 and 3294608.

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, 20512 + ... + 20671.

Almost surely, 2^3294640 is an apocalyptic number.

It is an amenable number.

3294640 is an abundant number, since it is smaller than the sum of its proper divisors (4365584).

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

3294640 is a wasteful number, since it uses less digits than its factorization.

3294640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41196 (or 41190 counting only the distinct ones).

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

The square root of 3294640 is about 1815.1143214685. The cubic root of 3294640 is about 148.7999055767.

The spelling of 3294640 in words is "three million, two hundred ninety-four thousand, six hundred forty".