722255744 has 64 divisors (see below), whose sum is σ = 1741188960. Its totient is φ = 291323904.

The previous prime is 722255741. The next prime is 722255767. The reversal of 722255744 is 447552227.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 722255698 and 722255707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722255741) 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, 8477 + ... + 38940.

Almost surely, 2^722255744 is an apocalyptic number.

It is an amenable number.

722255744 is an abundant number, since it is smaller than the sum of its proper divisors (1018933216).

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

722255744 is a wasteful number, since it uses less digits than its factorization.

722255744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47455 (or 47443 counting only the distinct ones).

The product of its digits is 156800, while the sum is 38.

The square root of 722255744 is about 26874.8161668131. The cubic root of 722255744 is about 897.2159829426.

The spelling of 722255744 in words is "seven hundred twenty-two million, two hundred fifty-five thousand, seven hundred forty-four".