238463905 has 8 divisors (see below), whose sum is σ = 286477632. Its totient is φ = 190557168.

The previous prime is 238463887. The next prime is 238463909. The reversal of 238463905 is 509364832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238463905 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238463909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21757 + ... + 30826.

It is an arithmetic number, because the mean of its divisors is an integer number (35809704).

Almost surely, 2^238463905 is an apocalyptic number.

It is an amenable number.

238463905 is a deficient number, since it is larger than the sum of its proper divisors (48013727).

238463905 is an equidigital number, since it uses as much as digits as its factorization.

238463905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53495.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 238463905 is about 15442.2765484886. The cubic root of 238463905 is about 620.1178279355.

The spelling of 238463905 in words is "two hundred thirty-eight million, four hundred sixty-three thousand, nine hundred five".