722673408 has 36 divisors (see below), whose sum is σ = 1923367208. Its totient is φ = 240890880.

The previous prime is 722673403. The next prime is 722673439. The reversal of 722673408 is 804376227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722673401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469723 + ... + 471258.

Almost surely, 2^722673408 is an apocalyptic number.

It is an amenable number.

722673408 is an abundant number, since it is smaller than the sum of its proper divisors (1200693800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722673408 is an equidigital number, since it uses as much as digits as its factorization.

722673408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941000 (or 940986 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 722673408 is about 26882.5855899316. The cubic root of 722673408 is about 897.3888961197.

The spelling of 722673408 in words is "seven hundred twenty-two million, six hundred seventy-three thousand, four hundred eight".