721826080 has 48 divisors (see below), whose sum is σ = 1737510264. Its totient is φ = 283279360.

The previous prime is 721826057. The next prime is 721826101. The reversal of 721826080 is 80628127.

It can be written as a sum of positive squares in 4 ways, for example, as 715455504 + 6370576 = 26748^2 + 2524^2 .

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, 34081 + ... + 51040.

Almost surely, 2^721826080 is an apocalyptic number.

It is an amenable number.

721826080 is an abundant number, since it is smaller than the sum of its proper divisors (1015684184).

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

721826080 is a wasteful number, since it uses less digits than its factorization.

721826080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85189 (or 85181 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 721826080 is about 26866.8211740801. The cubic root of 721826080 is about 897.0380321819.

The spelling of 721826080 in words is "seven hundred twenty-one million, eight hundred twenty-six thousand, eighty".