12002840 has 32 divisors (see below), whose sum is σ = 27282960. Its totient is φ = 4752000.

The previous prime is 12002777. The next prime is 12002843. The reversal of 12002840 is 4820021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002843) 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 7 ways as a sum of consecutive naturals, for example, 2555 + ... + 5525.

Almost surely, 2^12002840 is an apocalyptic number.

12002840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002840 is an abundant number, since it is smaller than the sum of its proper divisors (15280120).

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

12002840 is a wasteful number, since it uses less digits than its factorization.

12002840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083 (or 3079 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 12002840 is about 3464.5115095782. The cubic root of 12002840 is about 228.9609081330.

Adding to 12002840 its reverse (4820021), we get a palindrome (16822861).

The spelling of 12002840 in words is "twelve million, two thousand, eight hundred forty".