2506994394 has 16 divisors (see below), whose sum is σ = 5033501568. Its totient is φ = 832412672.

The previous prime is 2506994389. The next prime is 2506994401. The reversal of 2506994394 is 4934996052.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811362 + ... + 814445.

It is an arithmetic number, because the mean of its divisors is an integer number (314593848).

Almost surely, 2^2506994394 is an apocalyptic number.

2506994394 is an abundant number, since it is smaller than the sum of its proper divisors (2526507174).

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

2506994394 is a wasteful number, since it uses less digits than its factorization.

2506994394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626069.

The product of its (nonzero) digits is 2099520, while the sum is 51.

The square root of 2506994394 is about 50069.8950867685. The cubic root of 2506994394 is about 1358.4733434947.

The spelling of 2506994394 in words is "two billion, five hundred six million, nine hundred ninety-four thousand, three hundred ninety-four".