813609468 has 48 divisors (see below), whose sum is σ = 2410696960. Its totient is φ = 232459632.

The previous prime is 813609457. The next prime is 813609473. The reversal of 813609468 is 864906318.

It is a congruent number.

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, 537346 + ... + 538857.

Almost surely, 2^813609468 is an apocalyptic number.

It is an amenable number.

813609468 is an abundant number, since it is smaller than the sum of its proper divisors (1597087492).

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

813609468 is a wasteful number, since it uses less digits than its factorization.

813609468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076223 (or 1076215 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 813609468 is about 28523.8403445258. The cubic root of 813609468 is about 933.5523244070.

The spelling of 813609468 in words is "eight hundred thirteen million, six hundred nine thousand, four hundred sixty-eight".