722070438 has 32 divisors (see below), whose sum is σ = 1480273920. Its totient is φ = 234732960.

The previous prime is 722070431. The next prime is 722070467. The reversal of 722070438 is 834070227.

It is a junction number, because it is equal to n+sod(n) for n = 722070399 and 722070408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722070431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36928 + ... + 52988.

It is an arithmetic number, because the mean of its divisors is an integer number (46258560).

Almost surely, 2^722070438 is an apocalyptic number.

722070438 is an abundant number, since it is smaller than the sum of its proper divisors (758203482).

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

722070438 is a wasteful number, since it uses less digits than its factorization.

722070438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16252.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 722070438 is about 26871.3683685815. The cubic root of 722070438 is about 897.1392447848.

The spelling of 722070438 in words is "seven hundred twenty-two million, seventy thousand, four hundred thirty-eight".