722746248 has 32 divisors (see below), whose sum is σ = 2064989760. Its totient is φ = 206498880.

The previous prime is 722746247. The next prime is 722746253. The reversal of 722746248 is 842647227.

It is a Harshad number since it is a multiple of its sum of digits (42).

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

It is not an unprimeable number, because it can be changed into a prime (722746247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2150863 + ... + 2151198.

It is an arithmetic number, because the mean of its divisors is an integer number (64530930).

Almost surely, 2^722746248 is an apocalyptic number.

It is an amenable number.

722746248 is an abundant number, since it is smaller than the sum of its proper divisors (1342243512).

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

722746248 is a wasteful number, since it uses less digits than its factorization.

722746248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302077 (or 4302073 counting only the distinct ones).

The product of its digits is 301056, while the sum is 42.

The square root of 722746248 is about 26883.9403361933. The cubic root of 722746248 is about 897.4190451056.

The spelling of 722746248 in words is "seven hundred twenty-two million, seven hundred forty-six thousand, two hundred forty-eight".