722425881 has 8 divisors (see below), whose sum is σ = 981408960. Its totient is φ = 472530032.

The previous prime is 722425859. The next prime is 722425901. The reversal of 722425881 is 188524227.

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 722425881 - 2⁶ = 722425817 is a prime.

It is a super-2 number, since 2×722425881² = 1043798307077252322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (722425181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2271621 + ... + 2271938.

It is an arithmetic number, because the mean of its divisors is an integer number (122676120).

Almost surely, 2^722425881 is an apocalyptic number.

It is an amenable number.

722425881 is a deficient number, since it is larger than the sum of its proper divisors (258983079).

722425881 is a wasteful number, since it uses less digits than its factorization.

722425881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543615.

The product of its digits is 71680, while the sum is 39.

The square root of 722425881 is about 26877.9813416112. The cubic root of 722425881 is about 897.2864278196.

The spelling of 722425881 in words is "seven hundred twenty-two million, four hundred twenty-five thousand, eight hundred eighty-one".