722620332 has 96 divisors (see below), whose sum is σ = 2190988800. Its totient is φ = 201652416.

The previous prime is 722620313. The next prime is 722620361. The reversal of 722620332 is 233026227.

722620332 is a `hidden beast` number, since 7 + 2 + 2 + 620 + 3 + 32 = 666.

722620332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 722620296 and 722620305.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21394 + ... + 43622.

It is an arithmetic number, because the mean of its divisors is an integer number (22822800).

Almost surely, 2^722620332 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 722620332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095494400).

722620332 is an abundant number, since it is smaller than the sum of its proper divisors (1468368468).

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

722620332 is a wasteful number, since it uses less digits than its factorization.

722620332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22292 (or 22284 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 722620332 is about 26881.5983899767. The cubic root of 722620332 is about 897.3669263158.

Adding to 722620332 its reverse (233026227), we get a palindrome (955646559).

The spelling of 722620332 in words is "seven hundred twenty-two million, six hundred twenty thousand, three hundred thirty-two".