238140879 has 8 divisors (see below), whose sum is σ = 336198960. Its totient is φ = 149421696.

The previous prime is 238140863. The next prime is 238140883. The reversal of 238140879 is 978041832.

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

It is not a de Polignac number, because 238140879 - 2⁴ = 238140863 is a prime.

It is a super-2 number, since 2×238140879² = 113422156501785282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 238140879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238140829) 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, 2334664 + ... + 2334765.

It is an arithmetic number, because the mean of its divisors is an integer number (42024870).

Almost surely, 2^238140879 is an apocalyptic number.

238140879 is a deficient number, since it is larger than the sum of its proper divisors (98058081).

238140879 is a wasteful number, since it uses less digits than its factorization.

238140879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669449.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 238140879 is about 15431.8138596861. The cubic root of 238140879 is about 619.8376951149.

The spelling of 238140879 in words is "two hundred thirty-eight million, one hundred forty thousand, eight hundred seventy-nine".