238800981 has 4 divisors (see below), whose sum is σ = 318401312. Its totient is φ = 159200652.

The previous prime is 238800953. The next prime is 238800983. The reversal of 238800981 is 189008832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 238800981 - 2⁹ = 238800469 is a prime.

It is a super-2 number, since 2×238800981² = 114051817053124722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238800983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39800161 + ... + 39800166.

It is an arithmetic number, because the mean of its divisors is an integer number (79600328).

Almost surely, 2^238800981 is an apocalyptic number.

It is an amenable number.

238800981 is a deficient number, since it is larger than the sum of its proper divisors (79600331).

238800981 is an equidigital number, since it uses as much as digits as its factorization.

238800981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79600330.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 238800981 is about 15453.1867587239. The cubic root of 238800981 is about 620.4098755246.

The spelling of 238800981 in words is "two hundred thirty-eight million, eight hundred thousand, nine hundred eighty-one".