384826138 has 4 divisors (see below), whose sum is σ = 577239210. Its totient is φ = 192413068.

The previous prime is 384826073. The next prime is 384826151. The reversal of 384826138 is 831628483.

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

It can be written as a sum of positive squares in only one way, i.e., 240033049 + 144793089 = 15493^2 + 12033^2 .

It is a junction number, because it is equal to n+sod(n) for n = 384826094 and 384826103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96206533 + ... + 96206536.

Almost surely, 2^384826138 is an apocalyptic number.

384826138 is a deficient number, since it is larger than the sum of its proper divisors (192413072).

384826138 is a wasteful number, since it uses less digits than its factorization.

384826138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192413071.

The product of its digits is 221184, while the sum is 43.

The square root of 384826138 is about 19616.9859560535. The cubic root of 384826138 is about 727.3691111265.

The spelling of 384826138 in words is "three hundred eighty-four million, eight hundred twenty-six thousand, one hundred thirty-eight".