238997634 has 16 divisors (see below), whose sum is σ = 485832000. Its totient is φ = 78359760.

The previous prime is 238997593. The next prime is 238997659. The reversal of 238997634 is 436799832.

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, 326134 + ... + 326865.

It is an arithmetic number, because the mean of its divisors is an integer number (30364500).

Almost surely, 2^238997634 is an apocalyptic number.

238997634 is an abundant number, since it is smaller than the sum of its proper divisors (246834366).

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

238997634 is a wasteful number, since it uses less digits than its factorization.

238997634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653065.

The product of its digits is 1959552, while the sum is 51.

The square root of 238997634 is about 15459.5483116422. The cubic root of 238997634 is about 620.5801316482.

The spelling of 238997634 in words is "two hundred thirty-eight million, nine hundred ninety-seven thousand, six hundred thirty-four".