12870388 has 12 divisors (see below), whose sum is σ = 22734432. Its totient is φ = 6374840.

The previous prime is 12870371. The next prime is 12870401. The reversal of 12870388 is 88307821.

It is a congruent number.

It is an unprimeable number.

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, 14608 + ... + 15463.

It is an arithmetic number, because the mean of its divisors is an integer number (1894536).

Almost surely, 2^12870388 is an apocalyptic number.

It is an amenable number.

12870388 is a deficient number, since it is larger than the sum of its proper divisors (9864044).

12870388 is a wasteful number, since it uses less digits than its factorization.

12870388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30182 (or 30180 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 12870388 is about 3587.5322995062. The cubic root of 12870388 is about 234.3494183160.

The spelling of 12870388 in words is "twelve million, eight hundred seventy thousand, three hundred eighty-eight".