722208240 has 480 divisors, whose sum is σ = 2859816960. Its totient is φ = 161740800.

The previous prime is 722208131. The next prime is 722208247. The reversal of 722208240 is 42802227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722208247) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5512975 + ... + 5513105.

It is an arithmetic number, because the mean of its divisors is an integer number (5957952).

Almost surely, 2^722208240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722208240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1429908480).

722208240 is an abundant number, since it is smaller than the sum of its proper divisors (2137608720).

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

722208240 is a wasteful number, since it uses less digits than its factorization.

722208240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 722208240 is about 26873.9323508861. The cubic root of 722208240 is about 897.1963120330.

The spelling of 722208240 in words is "seven hundred twenty-two million, two hundred eight thousand, two hundred forty".