12888582 has 16 divisors (see below), whose sum is σ = 29459712. Its totient is φ = 3682440.

The previous prime is 12888563. The next prime is 12888583. The reversal of 12888582 is 28588821.

It is a super-2 number, since 2×12888582² = 332231091941448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 306871 = 12888582 / (1 + 2 + 8 + 8 + 8 + 5 + 8 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153394 + ... + 153477.

It is an arithmetic number, because the mean of its divisors is an integer number (1841232).

Almost surely, 2^12888582 is an apocalyptic number.

12888582 is an abundant number, since it is smaller than the sum of its proper divisors (16571130).

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

12888582 is a wasteful number, since it uses less digits than its factorization.

12888582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306883.

The product of its digits is 81920, while the sum is 42.

The square root of 12888582 is about 3590.0671302916. The cubic root of 12888582 is about 234.4597943142.

It can be divided in two parts, 1288 and 8582, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 12888582 in words is "twelve million, eight hundred eighty-eight thousand, five hundred eighty-two".