384432347449 has 16 divisors (see below), whose sum is σ = 407891427840. Its totient is φ = 361067857920.

The previous prime is 384432347443. The next prime is 384432347471. The reversal of 384432347449 is 944743234483.

It is a de Polignac number, because none of the positive numbers 2^k-384432347449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 384432347449.

It is not an unprimeable number, because it can be changed into a prime (384432347443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21397132 + ... + 21415090.

It is an arithmetic number, because the mean of its divisors is an integer number (25493214240).

Almost surely, 2^384432347449 is an apocalyptic number.

It is an amenable number.

384432347449 is a deficient number, since it is larger than the sum of its proper divisors (23459080391).

384432347449 is a wasteful number, since it uses less digits than its factorization.

384432347449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20520.

The product of its digits is 27869184, while the sum is 55.

The spelling of 384432347449 in words is "three hundred eighty-four billion, four hundred thirty-two million, three hundred forty-seven thousand, four hundred forty-nine".