722624734 has 12 divisors (see below), whose sum is σ = 1173731256. Its totient is φ = 333518952.

The previous prime is 722624699. The next prime is 722624759. The reversal of 722624734 is 437426227.

It is a junction number, because it is equal to n+sod(n) for n = 722624693 and 722624702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1068634 + ... + 1069309.

It is an arithmetic number, because the mean of its divisors is an integer number (97810938).

Almost surely, 2^722624734 is an apocalyptic number.

722624734 is a deficient number, since it is larger than the sum of its proper divisors (451106522).

722624734 is a wasteful number, since it uses less digits than its factorization.

722624734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137971 (or 2137958 counting only the distinct ones).

The product of its digits is 112896, while the sum is 37.

The square root of 722624734 is about 26881.6802674238. The cubic root of 722624734 is about 897.3687484811.

The spelling of 722624734 in words is "seven hundred twenty-two million, six hundred twenty-four thousand, seven hundred thirty-four".