1868346 has 40 divisors (see below), whose sum is σ = 4414080. Its totient is φ = 589032.

The previous prime is 1868333. The next prime is 1868371. The reversal of 1868346 is 6438681.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1868346.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2775 + ... + 3381.

It is an arithmetic number, because the mean of its divisors is an integer number (110352).

2^1868346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1868346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2207040).

1868346 is an abundant number, since it is smaller than the sum of its proper divisors (2545734).

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

1868346 is a wasteful number, since it uses less digits than its factorization.

1868346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 631 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1868346 is about 1366.8745370370. The cubic root of 1868346 is about 123.1645625996.

The spelling of 1868346 in words is "one million, eight hundred sixty-eight thousand, three hundred forty-six".