724982820 has 48 divisors (see below), whose sum is σ = 2045469888. Its totient is φ = 191850880.

The previous prime is 724982809. The next prime is 724982821. The reversal of 724982820 is 28289427.

It is not an unprimeable number, because it can be changed into a prime (724982821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38259 + ... + 53978.

It is an arithmetic number, because the mean of its divisors is an integer number (42613956).

Almost surely, 2^724982820 is an apocalyptic number.

It is an amenable number.

724982820 is an abundant number, since it is smaller than the sum of its proper divisors (1320487068).

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

724982820 is a wasteful number, since it uses less digits than its factorization.

724982820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92380 (or 92378 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 724982820 is about 26925.5050091916. The cubic root of 724982820 is about 898.3437935760.

The spelling of 724982820 in words is "seven hundred twenty-four million, nine hundred eighty-two thousand, eight hundred twenty".