722426749 has 12 divisors (see below), whose sum is σ = 798255360. Its totient is φ = 653292200.

The previous prime is 722426723. The next prime is 722426753. The reversal of 722426749 is 947624227.

It is not a de Polignac number, because 722426749 - 2²⁹ = 185555837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722423749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7482 + ... + 38740.

It is an arithmetic number, because the mean of its divisors is an integer number (66521280).

Almost surely, 2^722426749 is an apocalyptic number.

It is an amenable number.

722426749 is a deficient number, since it is larger than the sum of its proper divisors (75828611).

722426749 is a wasteful number, since it uses less digits than its factorization.

722426749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31472 (or 31461 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The square root of 722426749 is about 26877.9974886523. The cubic root of 722426749 is about 897.2867871848.

The spelling of 722426749 in words is "seven hundred twenty-two million, four hundred twenty-six thousand, seven hundred forty-nine".