384986842 has 4 divisors (see below), whose sum is σ = 577480266. Its totient is φ = 192493420.

The previous prime is 384986831. The next prime is 384986881. The reversal of 384986842 is 248689483.

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., 383024041 + 1962801 = 19571^2 + 1401^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 384986842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96246709 + ... + 96246712.

Almost surely, 2^384986842 is an apocalyptic number.

384986842 is a deficient number, since it is larger than the sum of its proper divisors (192493424).

384986842 is a wasteful number, since it uses less digits than its factorization.

384986842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192493423.

The product of its digits is 2654208, while the sum is 52.

The square root of 384986842 is about 19621.0815705965. The cubic root of 384986842 is about 727.4703471970.

The spelling of 384986842 in words is "three hundred eighty-four million, nine hundred eighty-six thousand, eight hundred forty-two".