384049399 has 4 divisors (see below), whose sum is σ = 386349264. Its totient is φ = 381749536.

The previous prime is 384049387. The next prime is 384049403. The reversal of 384049399 is 993940483.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384049399 is a prime.

It is a super-2 number, since 2×384049399² = 294987881744522402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384049319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1149682 + ... + 1150015.

It is an arithmetic number, because the mean of its divisors is an integer number (96587316).

Almost surely, 2^384049399 is an apocalyptic number.

384049399 is a deficient number, since it is larger than the sum of its proper divisors (2299865).

384049399 is a wasteful number, since it uses less digits than its factorization.

384049399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299864.

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 384049399 is about 19597.1783428125. The cubic root of 384049399 is about 726.8794038312.

The spelling of 384049399 in words is "three hundred eighty-four million, forty-nine thousand, three hundred ninety-nine".