2566346394 has 32 divisors (see below), whose sum is σ = 5358887424. Its totient is φ = 817791920.

The previous prime is 2566346353. The next prime is 2566346441. The reversal of 2566346394 is 4936436652.

It is a super-2 number, since 2×2566346394² = 13172267627993606472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305389 + ... + 313679.

It is an arithmetic number, because the mean of its divisors is an integer number (167465232).

Almost surely, 2^2566346394 is an apocalyptic number.

2566346394 is an abundant number, since it is smaller than the sum of its proper divisors (2792541030).

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

2566346394 is a wasteful number, since it uses less digits than its factorization.

2566346394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10562.

The product of its digits is 2799360, while the sum is 48.

The square root of 2566346394 is about 50659.1195541336. The cubic root of 2566346394 is about 1369.1102600166.

The spelling of 2566346394 in words is "two billion, five hundred sixty-six million, three hundred forty-six thousand, three hundred ninety-four".