384438749 has 8 divisors (see below), whose sum is σ = 394548000. Its totient is φ = 374449392.

The previous prime is 384438737. The next prime is 384438763. The reversal of 384438749 is 947834483.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384438749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 384438697 and 384438706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384438149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23459 + ... + 36320.

It is an arithmetic number, because the mean of its divisors is an integer number (49318500).

Almost surely, 2^384438749 is an apocalyptic number.

It is an amenable number.

384438749 is a deficient number, since it is larger than the sum of its proper divisors (10109251).

384438749 is a wasteful number, since it uses less digits than its factorization.

384438749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59947.

The product of its digits is 2322432, while the sum is 50.

The square root of 384438749 is about 19607.1096544085. The cubic root of 384438749 is about 727.1249581024.

The spelling of 384438749 in words is "three hundred eighty-four million, four hundred thirty-eight thousand, seven hundred forty-nine".