720969244 has 6 divisors (see below), whose sum is σ = 1261696184. Its totient is φ = 360484620.

The previous prime is 720969233. The next prime is 720969251. The reversal of 720969244 is 442969027.

It is a self number, because there is not a number n which added to its sum of digits gives 720969244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90121152 + ... + 90121159.

Almost surely, 2^720969244 is an apocalyptic number.

It is an amenable number.

720969244 is a deficient number, since it is larger than the sum of its proper divisors (540726940).

720969244 is a wasteful number, since it uses less digits than its factorization.

720969244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180242315 (or 180242313 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 720969244 is about 26850.8704514397. The cubic root of 720969244 is about 896.6829518162.

The spelling of 720969244 in words is "seven hundred twenty million, nine hundred sixty-nine thousand, two hundred forty-four".