384400885 has 8 divisors (see below), whose sum is σ = 503215776. Its totient is φ = 279564240.

The previous prime is 384400847. The next prime is 384400897. The reversal of 384400885 is 588004483.

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

It is not a de Polignac number, because 384400885 - 2¹³ = 384392693 is a prime.

It is a Duffinian number.

It is a congruent 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, 3494499 + ... + 3494608.

It is an arithmetic number, because the mean of its divisors is an integer number (62901972).

Almost surely, 2^384400885 is an apocalyptic number.

It is an amenable number.

384400885 is a deficient number, since it is larger than the sum of its proper divisors (118814891).

384400885 is a wasteful number, since it uses less digits than its factorization.

384400885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6989123.

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 384400885 is about 19606.1440625126. The cubic root of 384400885 is about 727.1010854106.

The spelling of 384400885 in words is "three hundred eighty-four million, four hundred thousand, eight hundred eighty-five".