238971641 has 16 divisors (see below), whose sum is σ = 252806400. Its totient is φ = 225613440.

The previous prime is 238971631. The next prime is 238971643. The reversal of 238971641 is 146179832.

It is not a de Polignac number, because 238971641 - 2¹⁰ = 238970617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (238971643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227285 + ... + 228333.

It is an arithmetic number, because the mean of its divisors is an integer number (15800400).

Almost surely, 2^238971641 is an apocalyptic number.

It is an amenable number.

238971641 is a deficient number, since it is larger than the sum of its proper divisors (13834759).

238971641 is a wasteful number, since it uses less digits than its factorization.

238971641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264.

The product of its digits is 72576, while the sum is 41.

The square root of 238971641 is about 15458.7076109227. The cubic root of 238971641 is about 620.5576330654.

The spelling of 238971641 in words is "two hundred thirty-eight million, nine hundred seventy-one thousand, six hundred forty-one".