722643360 has 48 divisors (see below), whose sum is σ = 2276328096. Its totient is φ = 192704768.

The previous prime is 722643349. The next prime is 722643391. The reversal of 722643360 is 63346227.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 752274 + ... + 753233.

It is an arithmetic number, because the mean of its divisors is an integer number (47423502).

Almost surely, 2^722643360 is an apocalyptic number.

It is an amenable number.

722643360 is an abundant number, since it is smaller than the sum of its proper divisors (1553684736).

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

722643360 is a wasteful number, since it uses less digits than its factorization.

722643360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505525 (or 1505517 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 722643360 is about 26882.0267093090. The cubic root of 722643360 is about 897.3764584519.

Adding to 722643360 its reverse (63346227), we get a palindrome (785989587).

It can be divided in two parts, 722643 and 360, that added together give a triangular number (723003 = T₁₂₀₂).

The spelling of 722643360 in words is "seven hundred twenty-two million, six hundred forty-three thousand, three hundred sixty".