385884279 has 24 divisors (see below), whose sum is σ = 622207872. Its totient is φ = 228427920.

The previous prime is 385884277. The next prime is 385884299. The reversal of 385884279 is 972488583.

It is a happy number.

385884279 is a `hidden beast` number, since 38 + 588 + 4 + 27 + 9 = 666.

It is not a de Polignac number, because 385884279 - 2¹ = 385884277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385884277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41067 + ... + 49580.

It is an arithmetic number, because the mean of its divisors is an integer number (25925328).

Almost surely, 2^385884279 is an apocalyptic number.

385884279 is a deficient number, since it is larger than the sum of its proper divisors (236323593).

385884279 is a wasteful number, since it uses less digits than its factorization.

385884279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90707 (or 90704 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 385884279 is about 19643.9374617209. The cubic root of 385884279 is about 728.0351735763.

The spelling of 385884279 in words is "three hundred eighty-five million, eight hundred eighty-four thousand, two hundred seventy-nine".