1868424 has 32 divisors (see below), whose sum is σ = 4715520. Its totient is φ = 616896.

The previous prime is 1868423. The next prime is 1868443. The reversal of 1868424 is 4248681.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1868423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2742 + ... + 3354.

It is an arithmetic number, because the mean of its divisors is an integer number (147360).

2^1868424 is an apocalyptic number.

It is an amenable number.

1868424 is an abundant number, since it is smaller than the sum of its proper divisors (2847096).

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

1868424 is a wasteful number, since it uses less digits than its factorization.

1868424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 745 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 1868424 is about 1366.9030689848. The cubic root of 1868424 is about 123.1662765402.

The spelling of 1868424 in words is "one million, eight hundred sixty-eight thousand, four hundred twenty-four".