238682905 has 12 divisors (see below), whose sum is σ = 296527140. Its totient is φ = 184218272.

The previous prime is 238682887. The next prime is 238682923. The reversal of 238682905 is 509286832.

It is an interprime number because it is at equal distance from previous prime (238682887) and next prime (238682923).

It can be written as a sum of positive squares in 2 ways, for example, as 105349696 + 133333209 = 10264^2 + 11547^2 .

It is not a de Polignac number, because 238682905 - 2¹⁹ = 238158617 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185394 + ... + 186676.

It is an arithmetic number, because the mean of its divisors is an integer number (24710595).

Almost surely, 2^238682905 is an apocalyptic number.

It is an amenable number.

238682905 is a deficient number, since it is larger than the sum of its proper divisors (57844235).

238682905 is an frugal number, since it uses more digits than its factorization.

238682905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 238682905 is about 15449.3658445905. The cubic root of 238682905 is about 620.3076040385.

The spelling of 238682905 in words is "two hundred thirty-eight million, six hundred eighty-two thousand, nine hundred five".