725943456 has 72 divisors (see below), whose sum is σ = 2359322784. Its totient is φ = 207411840.

The previous prime is 725943451. The next prime is 725943467. The reversal of 725943456 is 654349527.

725943456 is a `hidden beast` number, since 7 + 2 + 594 + 3 + 4 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-3 number, since 3×725943456³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725943451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178030 + ... + 182061.

It is an arithmetic number, because the mean of its divisors is an integer number (32768372).

Almost surely, 2^725943456 is an apocalyptic number.

It is an amenable number.

725943456 is an abundant number, since it is smaller than the sum of its proper divisors (1633379328).

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

725943456 is a wasteful number, since it uses less digits than its factorization.

725943456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360114 (or 360103 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 725943456 is about 26943.3378778502. The cubic root of 725943456 is about 898.7404009077.

The spelling of 725943456 in words is "seven hundred twenty-five million, nine hundred forty-three thousand, four hundred fifty-six".