816720048 has 60 divisors (see below), whose sum is σ = 2359426368. Its totient is φ = 263456640.

The previous prime is 816720031. The next prime is 816720059. The reversal of 816720048 is 840027618.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 816719994 and 816720021.

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, 87015 + ... + 95942.

Almost surely, 2^816720048 is an apocalyptic number.

It is an amenable number.

816720048 is an abundant number, since it is smaller than the sum of its proper divisors (1542706320).

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

816720048 is a wasteful number, since it uses less digits than its factorization.

816720048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183002 (or 182993 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 816720048 is about 28578.3142959832. The cubic root of 816720048 is about 934.7405260530.

The spelling of 816720048 in words is "eight hundred sixteen million, seven hundred twenty thousand, forty-eight".