1840412 has 12 divisors (see below), whose sum is σ = 3680880. Its totient is φ = 788736.

The previous prime is 1840393. The next prime is 1840429. The reversal of 1840412 is 2140481.

1840412 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32837 + ... + 32892.

It is an arithmetic number, because the mean of its divisors is an integer number (306740).

2^1840412 is an apocalyptic number.

It is an amenable number.

1840412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1840412 is a wasteful number, since it uses less digits than its factorization.

1840412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65740 (or 65738 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1840412 is about 1356.6178533397. The cubic root of 1840412 is about 122.5476588125.

Adding to 1840412 its reverse (2140481), we get a palindrome (3980893).

The spelling of 1840412 in words is "one million, eight hundred forty thousand, four hundred twelve".