238105100 has 36 divisors (see below), whose sum is σ = 521727024. Its totient is φ = 94313280.

The previous prime is 238105099. The next prime is 238105121. The reversal of 238105100 is 1501832.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1259 + ... + 21858.

Almost surely, 2^238105100 is an apocalyptic number.

238105100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238105100 is an abundant number, since it is smaller than the sum of its proper divisors (283621924).

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

238105100 is a wasteful number, since it uses less digits than its factorization.

238105100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23234 (or 23227 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 238105100 is about 15430.6545551380. The cubic root of 238105100 is about 619.8066514686.

Adding to 238105100 its reverse (1501832), we get a palindrome (239606932).

The spelling of 238105100 in words is "two hundred thirty-eight million, one hundred five thousand, one hundred".