2566389430 has 48 divisors (see below), whose sum is σ = 5149321632. Its totient is φ = 920057600.

The previous prime is 2566389401. The next prime is 2566389487. The reversal of 2566389430 is 349836652.

It is a happy number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70974 + ... + 100846.

It is an arithmetic number, because the mean of its divisors is an integer number (107277534).

Almost surely, 2^2566389430 is an apocalyptic number.

2566389430 is an abundant number, since it is smaller than the sum of its proper divisors (2582932202).

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

2566389430 is a wasteful number, since it uses less digits than its factorization.

2566389430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29973 (or 29962 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The square root of 2566389430 is about 50659.5443129920. The cubic root of 2566389430 is about 1369.1179130105.

The spelling of 2566389430 in words is "two billion, five hundred sixty-six million, three hundred eighty-nine thousand, four hundred thirty".