625438 has 8 divisors (see below), whose sum is σ = 1023480. Its totient is φ = 284280.

The previous prime is 625409. The next prime is 625451. The reversal of 625438 is 834526.

625438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 14193 + ... + 14236.

It is an arithmetic number, because the mean of its divisors is an integer number (127935).

2⁶²⁵⁴³⁸ is an apocalyptic number.

625438 is a deficient number, since it is larger than the sum of its proper divisors (398042).

625438 is a wasteful number, since it uses less digits than its factorization.

625438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28442.

The product of its digits is 5760, while the sum is 28.

The square root of 625438 is about 790.8463820490. The cubic root of 625438 is about 85.5187651891.

It can be divided in two parts, 6 and 25438, that multiplied together give a triangular number (152628 = T₅₅₂).

The spelling of 625438 in words is "six hundred twenty-five thousand, four hundred thirty-eight".