394238875 has 8 divisors (see below), whose sum is σ = 492010272. Its totient is φ = 315391000.

The previous prime is 394238869. The next prime is 394238893. The reversal of 394238875 is 578832493.

It is not a de Polignac number, because 394238875 - 2¹⁷ = 394107803 is a prime.

It is a super-2 number, since 2×394238875² = 310848581122531250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576831 + ... + 1577080.

It is an arithmetic number, because the mean of its divisors is an integer number (61501284).

Almost surely, 2^394238875 is an apocalyptic number.

394238875 is a deficient number, since it is larger than the sum of its proper divisors (97771397).

394238875 is an equidigital number, since it uses as much as digits as its factorization.

394238875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153926 (or 3153916 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 394238875 is about 19855.4495038516. The cubic root of 394238875 is about 733.2518188780.

The spelling of 394238875 in words is "three hundred ninety-four million, two hundred thirty-eight thousand, eight hundred seventy-five".