384902399 has 12 divisors (see below), whose sum is σ = 471310200. Its totient is φ = 312551568.

The previous prime is 384902393. The next prime is 384902407. The reversal of 384902399 is 993209483.

It is not a de Polignac number, because 384902399 - 2⁸ = 384902143 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384902393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205784 + ... + 207645.

It is an arithmetic number, because the mean of its divisors is an integer number (39275850).

Almost surely, 2^384902399 is an apocalyptic number.

384902399 is a deficient number, since it is larger than the sum of its proper divisors (86407801).

384902399 is a wasteful number, since it uses less digits than its factorization.

384902399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413462 (or 413455 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 384902399 is about 19618.9296089262. The cubic root of 384902399 is about 727.4171555345.

The spelling of 384902399 in words is "three hundred eighty-four million, nine hundred two thousand, three hundred ninety-nine".