722369144 has 16 divisors (see below), whose sum is σ = 1547934000. Its totient is φ = 309586752.

The previous prime is 722369129. The next prime is 722369147. The reversal of 722369144 is 441963227.

It is a junction number, because it is equal to n+sod(n) for n = 722369098 and 722369107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722369147) 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, 6449669 + ... + 6449780.

It is an arithmetic number, because the mean of its divisors is an integer number (96745875).

Almost surely, 2^722369144 is an apocalyptic number.

It is an amenable number.

722369144 is an abundant number, since it is smaller than the sum of its proper divisors (825564856).

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

722369144 is a wasteful number, since it uses less digits than its factorization.

722369144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12899462 (or 12899458 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 722369144 is about 26876.9258658798. The cubic root of 722369144 is about 897.2629372100.

It can be divided in two parts, 7223 and 69144, that added together give a palindrome (76367).

The spelling of 722369144 in words is "seven hundred twenty-two million, three hundred sixty-nine thousand, one hundred forty-four".