722046746 has 8 divisors (see below), whose sum is σ = 1146780180. Its totient is φ = 339786688.

The previous prime is 722046737. The next prime is 722046769. The reversal of 722046746 is 647640227.

It can be written as a sum of positive squares in 2 ways, for example, as 711555625 + 10491121 = 26675^2 + 3239^2 .

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

It is a Curzon number.

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, 10618301 + ... + 10618368.

Almost surely, 2^722046746 is an apocalyptic number.

722046746 is a deficient number, since it is larger than the sum of its proper divisors (424733434).

722046746 is a wasteful number, since it uses less digits than its factorization.

722046746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21236688.

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 722046746 is about 26870.9275239989. The cubic root of 722046746 is about 897.1294326048.

The spelling of 722046746 in words is "seven hundred twenty-two million, forty-six thousand, seven hundred forty-six".