725442 has 8 divisors (see below), whose sum is σ = 1450896. Its totient is φ = 241812.

The previous prime is 725437. The next prime is 725447. The reversal of 725442 is 244527.

It is an interprime number because it is at equal distance from previous prime (725437) and next prime (725447).

It is a sphenic number, since it is the product of 3 distinct primes.

725442 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725442.

It is not an unprimeable number, because it can be changed into a prime (725447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60448 + ... + 60459.

It is an arithmetic number, because the mean of its divisors is an integer number (181362).

2⁷²⁵⁴⁴² is an apocalyptic number.

725442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

725442 is a wasteful number, since it uses less digits than its factorization.

725442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120912.

The product of its digits is 2240, while the sum is 24.

The square root of 725442 is about 851.7288300862. The cubic root of 725442 is about 89.8533413906.

Adding to 725442 its reverse (244527), we get a palindrome (969969).

The spelling of 725442 in words is "seven hundred twenty-five thousand, four hundred forty-two".