809424402 has 16 divisors (see below), whose sum is σ = 1619157792. Its totient is φ = 269756640.

The previous prime is 809424401. The next prime is 809424409. The reversal of 809424402 is 204424908.

It is not an unprimeable number, because it can be changed into a prime (809424401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34713 + ... + 53139.

It is an arithmetic number, because the mean of its divisors is an integer number (101197362).

Almost surely, 2^809424402 is an apocalyptic number.

809424402 is an abundant number, since it is smaller than the sum of its proper divisors (809733390).

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

809424402 is a wasteful number, since it uses less digits than its factorization.

809424402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25753.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 809424402 is about 28450.3849183100. The cubic root of 809424402 is about 931.9488949180.

The spelling of 809424402 in words is "eight hundred nine million, four hundred twenty-four thousand, four hundred two".