384090738 has 32 divisors (see below), whose sum is σ = 810067200. Its totient is φ = 121073616.

The previous prime is 384090737. The next prime is 384090743. The reversal of 384090738 is 837090483.

It is a self number, because there is not a number n which added to its sum of digits gives 384090738.

It is not an unprimeable number, because it can be changed into a prime (384090737) 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, 67845 + ... + 73287.

It is an arithmetic number, because the mean of its divisors is an integer number (25314600).

Almost surely, 2^384090738 is an apocalyptic number.

384090738 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

384090738 is an abundant number, since it is smaller than the sum of its proper divisors (425976462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384090738 is a wasteful number, since it uses less digits than its factorization.

384090738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 384090738 is about 19598.2330325976. The cubic root of 384090738 is about 726.9054832797.

The spelling of 384090738 in words is "three hundred eighty-four million, ninety thousand, seven hundred thirty-eight".