722634730 has 16 divisors (see below), whose sum is σ = 1302488064. Its totient is φ = 288666000.

The previous prime is 722634659. The next prime is 722634739. The reversal of 722634730 is 37436227.

It is a happy number.

722634730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (722634739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40602 + ... + 55621.

It is an arithmetic number, because the mean of its divisors is an integer number (81405504).

Almost surely, 2^722634730 is an apocalyptic number.

722634730 is a deficient number, since it is larger than the sum of its proper divisors (579853334).

722634730 is a wasteful number, since it uses less digits than its factorization.

722634730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96981.

The product of its (nonzero) digits is 42336, while the sum is 34.

The square root of 722634730 is about 26881.8661926586. The cubic root of 722634730 is about 897.3728862012.

The spelling of 722634730 in words is "seven hundred twenty-two million, six hundred thirty-four thousand, seven hundred thirty".