238238900 has 18 divisors (see below), whose sum is σ = 516978630. Its totient is φ = 95295520.

The previous prime is 238238879. The next prime is 238238921. The reversal of 238238900 is 9832832.

It is an interprime number because it is at equal distance from previous prime (238238879) and next prime (238238921).

It can be written as a sum of positive squares in 3 ways, for example, as 524176 + 237714724 = 724^2 + 15418^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1191095 + ... + 1191294.

It is an arithmetic number, because the mean of its divisors is an integer number (28721035).

Almost surely, 2^238238900 is an apocalyptic number.

238238900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238238900 is an abundant number, since it is smaller than the sum of its proper divisors (278739730).

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

238238900 is a wasteful number, since it uses less digits than its factorization.

238238900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382403 (or 2382396 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 238238900 is about 15434.9894719757. The cubic root of 238238900 is about 619.9227271022.

It can be divided in two parts, 23823 and 8900, that added together give a palindrome (32723).

The spelling of 238238900 in words is "two hundred thirty-eight million, two hundred thirty-eight thousand, nine hundred".