12002870 has 32 divisors (see below), whose sum is σ = 24814080. Its totient is φ = 4134240.

The previous prime is 12002869. The next prime is 12002917. The reversal of 12002870 is 7820021.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 782 + ... + 4961.

It is an arithmetic number, because the mean of its divisors is an integer number (775440).

Almost surely, 2^12002870 is an apocalyptic number.

12002870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12002870 is an abundant number, since it is smaller than the sum of its proper divisors (12811210).

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

12002870 is a wasteful number, since it uses less digits than its factorization.

12002870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 12002870 is about 3464.5158391902. The cubic root of 12002870 is about 228.9610988884.

Adding to 12002870 its reverse (7820021), we get a palindrome (19822891).

It can be divided in two parts, 1200 and 2870, that multiplied together give a triangular number (3444000 = T₂₆₂₄).

The spelling of 12002870 in words is "twelve million, two thousand, eight hundred seventy".