724022380 has 12 divisors (see below), whose sum is σ = 1520447040. Its totient is φ = 289608944.

The previous prime is 724022317. The next prime is 724022423. The reversal of 724022380 is 83220427.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18100540 + ... + 18100579.

It is an arithmetic number, because the mean of its divisors is an integer number (126703920).

Almost surely, 2^724022380 is an apocalyptic number.

It is an amenable number.

724022380 is an abundant number, since it is smaller than the sum of its proper divisors (796424660).

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

724022380 is a wasteful number, since it uses less digits than its factorization.

724022380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36201128 (or 36201126 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 724022380 is about 26907.6639640085. The cubic root of 724022380 is about 897.9469167683.

The spelling of 724022380 in words is "seven hundred twenty-four million, twenty-two thousand, three hundred eighty".