813442848 has 48 divisors (see below), whose sum is σ = 2140016256. Its totient is φ = 270547200.

The previous prime is 813442831. The next prime is 813442859. The reversal of 813442848 is 848244318.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×813442848² = 1323378533924702208, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 35298 + ... + 53598.

It is an arithmetic number, because the mean of its divisors is an integer number (44583672).

Almost surely, 2^813442848 is an apocalyptic number.

It is an amenable number.

813442848 is an abundant number, since it is smaller than the sum of its proper divisors (1326573408).

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

813442848 is a wasteful number, since it uses less digits than its factorization.

813442848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18777 (or 18769 counting only the distinct ones).

The product of its digits is 196608, while the sum is 42.

The square root of 813442848 is about 28520.9194802692. The cubic root of 813442848 is about 933.4885923120.

The spelling of 813442848 in words is "eight hundred thirteen million, four hundred forty-two thousand, eight hundred forty-eight".