722516634 has 48 divisors (see below), whose sum is σ = 1791758592. Its totient is φ = 206125344.

The previous prime is 722516633. The next prime is 722516647. The reversal of 722516634 is 436615227.

722516634 is a `hidden beast` number, since 7 + 2 + 2 + 5 + 16 + 634 = 666.

It is not an unprimeable number, because it can be changed into a prime (722516633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88447 + ... + 96269.

It is an arithmetic number, because the mean of its divisors is an integer number (37328304).

Almost surely, 2^722516634 is an apocalyptic number.

722516634 is an abundant number, since it is smaller than the sum of its proper divisors (1069241958).

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

722516634 is a wasteful number, since it uses less digits than its factorization.

722516634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8571 (or 8568 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 722516634 is about 26879.6695292185. The cubic root of 722516634 is about 897.3239993904.

The spelling of 722516634 in words is "seven hundred twenty-two million, five hundred sixteen thousand, six hundred thirty-four".