722453760 has 648 divisors, whose sum is σ = 3132519936. Its totient is φ = 150405120.

The previous prime is 722453747. The next prime is 722453773. The reversal of 722453760 is 67354227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (722453747) and next prime (722453773).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 23304945 + ... + 23304975.

Almost surely, 2^722453760 is an apocalyptic number.

722453760 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722453760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566259968).

722453760 is an abundant number, since it is smaller than the sum of its proper divisors (2410066176).

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

722453760 is a wasteful number, since it uses less digits than its factorization.

722453760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 722453760 is about 26878.4999581450. The cubic root of 722453760 is about 897.2979700078.

The spelling of 722453760 in words is "seven hundred twenty-two million, four hundred fifty-three thousand, seven hundred sixty".