2012440 has 16 divisors (see below), whose sum is σ = 4528080. Its totient is φ = 804960.

The previous prime is 2012429. The next prime is 2012447. The reversal of 2012440 is 442102.

2012440 = T₂₉₇ + T₂₉₈ + ... + T₃₃₆.

It is a self number, because there is not a number n which added to its sum of digits gives 2012440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25116 + ... + 25195.

It is an arithmetic number, because the mean of its divisors is an integer number (283005).

2^2012440 is an apocalyptic number.

2012440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012440 is an abundant number, since it is smaller than the sum of its proper divisors (2515640).

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

2012440 is a wasteful number, since it uses less digits than its factorization.

2012440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50322 (or 50318 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2012440 is about 1418.6049485322. The cubic root of 2012440 is about 126.2527888807.

Adding to 2012440 its reverse (442102), we get a palindrome (2454542).

It can be divided in two parts, 20124 and 40, that added together give a square (20164 = 142²).

The spelling of 2012440 in words is "two million, twelve thousand, four hundred forty".