725428194 has 8 divisors (see below), whose sum is σ = 1450856400. Its totient is φ = 241809396.

The previous prime is 725428181. The next prime is 725428201. The reversal of 725428194 is 491824527.

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

725428194 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60452344 + ... + 60452355.

It is an arithmetic number, because the mean of its divisors is an integer number (181357050).

Almost surely, 2^725428194 is an apocalyptic number.

725428194 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.

725428194 is a wasteful number, since it uses less digits than its factorization.

725428194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120904704.

The product of its digits is 161280, while the sum is 42.

The square root of 725428194 is about 26933.7742249392. The cubic root of 725428194 is about 898.5277138270.

The spelling of 725428194 in words is "seven hundred twenty-five million, four hundred twenty-eight thousand, one hundred ninety-four".