722381598 has 16 divisors (see below), whose sum is σ = 1605292560. Its totient is φ = 240793848.

The previous prime is 722381579. The next prime is 722381617. The reversal of 722381598 is 895183227.

It is a happy number.

722381598 is a `hidden beast` number, since 7 + 22 + 38 + 1 + 598 = 666.

It is an interprime number because it is at equal distance from previous prime (722381579) and next prime (722381617).

It is a Curzon number.

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, 6688665 + ... + 6688772.

It is an arithmetic number, because the mean of its divisors is an integer number (100330785).

Almost surely, 2^722381598 is an apocalyptic number.

722381598 is an abundant number, since it is smaller than the sum of its proper divisors (882910962).

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

722381598 is a wasteful number, since it uses less digits than its factorization.

722381598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13377448 (or 13377442 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 722381598 is about 26877.1575506042. The cubic root of 722381598 is about 897.2680935988.

The spelling of 722381598 in words is "seven hundred twenty-two million, three hundred eighty-one thousand, five hundred ninety-eight".