725432 has 8 divisors (see below), whose sum is σ = 1360200. Its totient is φ = 362712.

The previous prime is 725423. The next prime is 725437. The reversal of 725432 is 234527.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 725398 and 725407.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725432.

It is not an unprimeable number, because it can be changed into a prime (725437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45332 + ... + 45347.

It is an arithmetic number, because the mean of its divisors is an integer number (170025).

2⁷²⁵⁴³² is an apocalyptic number.

It is an amenable number.

725432 is a deficient number, since it is larger than the sum of its proper divisors (634768).

725432 is a wasteful number, since it uses less digits than its factorization.

725432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90685 (or 90681 counting only the distinct ones).

The product of its digits is 1680, while the sum is 23.

The square root of 725432 is about 851.7229596530. The cubic root of 725432 is about 89.8529285216.

Adding to 725432 its reverse (234527), we get a palindrome (959959).

The spelling of 725432 in words is "seven hundred twenty-five thousand, four hundred thirty-two".