2840412 has 12 divisors (see below), whose sum is σ = 6627656. Its totient is φ = 946800.

The previous prime is 2840393. The next prime is 2840417. The reversal of 2840412 is 2140482.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2840417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118339 + ... + 118362.

2^2840412 is an apocalyptic number.

It is an amenable number.

2840412 is an abundant number, since it is smaller than the sum of its proper divisors (3787244).

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

2840412 is a wasteful number, since it uses less digits than its factorization.

2840412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236708 (or 236706 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2840412 is about 1685.3521887131. The cubic root of 2840412 is about 141.6208226903.

Adding to 2840412 its reverse (2140482), we get a palindrome (4980894).

The spelling of 2840412 in words is "two million, eight hundred forty thousand, four hundred twelve".