809669430 has 24 divisors (see below), whose sum is σ = 2105140752. Its totient is φ = 215911824.

The previous prime is 809669417. The next prime is 809669453. The reversal of 809669430 is 34966908.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4498074 + ... + 4498253.

It is an arithmetic number, because the mean of its divisors is an integer number (87714198).

Almost surely, 2^809669430 is an apocalyptic number.

809669430 is an abundant number, since it is smaller than the sum of its proper divisors (1295471322).

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

809669430 is a wasteful number, since it uses less digits than its factorization.

809669430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8996340 (or 8996337 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 809669430 is about 28454.6908259429. The cubic root of 809669430 is about 932.0429249204.

The spelling of 809669430 in words is "eight hundred nine million, six hundred sixty-nine thousand, four hundred thirty".