2012040 has 128 divisors (see below), whose sum is σ = 7084800. Its totient is φ = 513216.

The previous prime is 2012033. The next prime is 2012047. The reversal of 2012040 is 402102.

It is an interprime number because it is at equal distance from previous prime (2012033) and next prime (2012047).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2012047) 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 31 ways as a sum of consecutive naturals, for example, 87469 + ... + 87491.

It is an arithmetic number, because the mean of its divisors is an integer number (55350).

2^2012040 is an apocalyptic number.

2012040 is a gapful number since it is divisible by the number (20) 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 2012040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3542400).

2012040 is an abundant number, since it is smaller than the sum of its proper divisors (5072760).

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

2012040 is an equidigital number, since it uses as much as digits as its factorization.

2012040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2012040 is about 1418.4639579489. The cubic root of 2012040 is about 126.2444235030.

Adding to 2012040 its reverse (402102), we get a palindrome (2414142).

The spelling of 2012040 in words is "two million, twelve thousand, forty".