722754730 has 8 divisors (see below), whose sum is σ = 1300958532. Its totient is φ = 289101888.

The previous prime is 722754727. The next prime is 722754743. The reversal of 722754730 is 37457227.

It can be written as a sum of positive squares in 2 ways, for example, as 664247529 + 58507201 = 25773^2 + 7649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 722754730.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36137727 + ... + 36137746.

Almost surely, 2^722754730 is an apocalyptic number.

722754730 is a deficient number, since it is larger than the sum of its proper divisors (578203802).

722754730 is a wasteful number, since it uses less digits than its factorization.

722754730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72275480.

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 722754730 is about 26884.0980879032. The cubic root of 722754730 is about 897.4225557331.

The spelling of 722754730 in words is "seven hundred twenty-two million, seven hundred fifty-four thousand, seven hundred thirty".