238563870 has 16 divisors (see below), whose sum is σ = 572553360. Its totient is φ = 63617024.

The previous prime is 238563859. The next prime is 238563887. The reversal of 238563870 is 78365832.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3976035 + ... + 3976094.

It is an arithmetic number, because the mean of its divisors is an integer number (35784585).

Almost surely, 2^238563870 is an apocalyptic number.

238563870 is an abundant number, since it is smaller than the sum of its proper divisors (333989490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238563870 is a wasteful number, since it uses less digits than its factorization.

238563870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952139.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 238563870 is about 15445.5129406569. The cubic root of 238563870 is about 620.2044677682.

The spelling of 238563870 in words is "two hundred thirty-eight million, five hundred sixty-three thousand, eight hundred seventy".