238430100 has 72 divisors (see below), whose sum is σ = 730453248. Its totient is φ = 59840000.

The previous prime is 238430099. The next prime is 238430147. The reversal of 238430100 is 1034832.

It is a happy number.

238430100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18276 + ... + 28475.

It is an arithmetic number, because the mean of its divisors is an integer number (10145184).

Almost surely, 2^238430100 is an apocalyptic number.

238430100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238430100 is an abundant number, since it is smaller than the sum of its proper divisors (492023148).

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

238430100 is a wasteful number, since it uses less digits than its factorization.

238430100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46785 (or 46778 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 238430100 is about 15441.1819495789. The cubic root of 238430100 is about 620.0885236070.

Adding to 238430100 its reverse (1034832), we get a palindrome (239464932).

The spelling of 238430100 in words is "two hundred thirty-eight million, four hundred thirty thousand, one hundred".