722523445 has 8 divisors (see below), whose sum is σ = 990889344. Its totient is φ = 495444624.

The previous prime is 722523437. The next prime is 722523463. The reversal of 722523445 is 544325227.

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

It is a cyclic number.

It is not a de Polignac number, because 722523445 - 2³ = 722523437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722523445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10321729 + ... + 10321798.

It is an arithmetic number, because the mean of its divisors is an integer number (123861168).

Almost surely, 2^722523445 is an apocalyptic number.

It is an amenable number.

722523445 is a deficient number, since it is larger than the sum of its proper divisors (268365899).

722523445 is a wasteful number, since it uses less digits than its factorization.

722523445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20643539.

The product of its digits is 67200, while the sum is 34.

The square root of 722523445 is about 26879.7962231859. The cubic root of 722523445 is about 897.3268190047.

The spelling of 722523445 in words is "seven hundred twenty-two million, five hundred twenty-three thousand, four hundred forty-five".