1912812 has 48 divisors (see below), whose sum is σ = 4996992. Its totient is φ = 564480.

The previous prime is 1912763. The next prime is 1912829. The reversal of 1912812 is 2182191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5508 + ... + 5844.

It is an arithmetic number, because the mean of its divisors is an integer number (104104).

2^1912812 is an apocalyptic number.

1912812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2498496).

1912812 is an abundant number, since it is smaller than the sum of its proper divisors (3084180).

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

1912812 is a wasteful number, since it uses less digits than its factorization.

1912812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 396 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

The square root of 1912812 is about 1383.0444678317. The cubic root of 1912812 is about 124.1340035901.

It can be divided in two parts, 191 and 2812, that added together give a palindrome (3003).

The spelling of 1912812 in words is "one million, nine hundred twelve thousand, eight hundred twelve".