840725944 has 16 divisors (see below), whose sum is σ = 1586943000. Its totient is φ = 417541152.

The previous prime is 840725917. The next prime is 840725953. The reversal of 840725944 is 449527048.

840725944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×840725944² = 1413640225829382272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 840725944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351462 + ... + 353845.

Almost surely, 2^840725944 is an apocalyptic number.

It is an amenable number.

840725944 is a deficient number, since it is larger than the sum of its proper divisors (746217056).

840725944 is a wasteful number, since it uses less digits than its factorization.

840725944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705462 (or 705458 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 840725944 is about 28995.2745115476. The cubic root of 840725944 is about 943.8105258669.

The spelling of 840725944 in words is "eight hundred forty million, seven hundred twenty-five thousand, nine hundred forty-four".