238625428 has 12 divisors (see below), whose sum is σ = 421729812. Its totient is φ = 118131200.

The previous prime is 238625417. The next prime is 238625459. The reversal of 238625428 is 824526832.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 143328784 + 95296644 = 11972^2 + 9762^2 .

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, 294925 + ... + 295732.

It is an arithmetic number, because the mean of its divisors is an integer number (35144151).

Almost surely, 2^238625428 is an apocalyptic number.

It is an amenable number.

238625428 is a deficient number, since it is larger than the sum of its proper divisors (183104384).

238625428 is a wasteful number, since it uses less digits than its factorization.

238625428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590762 (or 590760 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 238625428 is about 15447.5055591510. The cubic root of 238625428 is about 620.2578081494.

The spelling of 238625428 in words is "two hundred thirty-eight million, six hundred twenty-five thousand, four hundred twenty-eight".