1868394824 has 16 divisors (see below), whose sum is σ = 3503698800. Its totient is φ = 934075152.

The previous prime is 1868394821. The next prime is 1868394839. The reversal of 1868394824 is 4284938681.

It is not an unprimeable number, because it can be changed into a prime (1868394821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113399 + ... + 128825.

It is an arithmetic number, because the mean of its divisors is an integer number (218981175).

Almost surely, 2^1868394824 is an apocalyptic number.

It is an amenable number.

1868394824 is a deficient number, since it is larger than the sum of its proper divisors (1635303976).

1868394824 is a wasteful number, since it uses less digits than its factorization.

1868394824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30572 (or 30568 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 53.

The square root of 1868394824 is about 43224.9328975766. The cubic root of 1868394824 is about 1231.6563544415.

The spelling of 1868394824 in words is "one billion, eight hundred sixty-eight million, three hundred ninety-four thousand, eight hundred twenty-four".