238480681 has 2 divisors, whose sum is σ = 238480682. Its totient is φ = 238480680.

The previous prime is 238480667. The next prime is 238480757. The reversal of 238480681 is 186084832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211440681 + 27040000 = 14541^2 + 5200^2 .

It is a cyclic number.

It is not a de Polignac number, because 238480681 - 2⁷ = 238480553 is a prime.

It is a super-2 number, since 2×238480681² = 113746070420447522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (238480621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119240340 + 119240341.

It is an arithmetic number, because the mean of its divisors is an integer number (119240341).

Almost surely, 2^238480681 is an apocalyptic number.

It is an amenable number.

238480681 is a deficient number, since it is larger than the sum of its proper divisors (1).

238480681 is an equidigital number, since it uses as much as digits as its factorization.

238480681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 238480681 is about 15442.8197230946. The cubic root of 238480681 is about 620.1323694133.

The spelling of 238480681 in words is "two hundred thirty-eight million, four hundred eighty thousand, six hundred eighty-one".