809744466 has 16 divisors (see below), whose sum is σ = 1627712064. Its totient is φ = 268544304.

The previous prime is 809744449. The next prime is 809744471. The reversal of 809744466 is 664447908.

It is a super-2 number, since 2×809744466² = 1311372200435250312, which contains 22 as substring.

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, 341350 + ... + 343713.

It is an arithmetic number, because the mean of its divisors is an integer number (101732004).

Almost surely, 2^809744466 is an apocalyptic number.

809744466 is an abundant number, since it is smaller than the sum of its proper divisors (817967598).

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

809744466 is a wasteful number, since it uses less digits than its factorization.

809744466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685265.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 809744466 is about 28456.0093126215. The cubic root of 809744466 is about 932.0717163464.

The spelling of 809744466 in words is "eight hundred nine million, seven hundred forty-four thousand, four hundred sixty-six".