12585474 has 48 divisors (see below), whose sum is σ = 31505760. Its totient is φ = 3588480.

The previous prime is 12585431. The next prime is 12585479. The reversal of 12585474 is 47458521.

12585474 is a `hidden beast` number, since 1 + 2 + 585 + 4 + 74 = 666.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12585479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1497 + ... + 5235.

It is an arithmetic number, because the mean of its divisors is an integer number (656370).

Almost surely, 2^12585474 is an apocalyptic number.

12585474 is the 2244-th heptagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12585474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15752880).

12585474 is an abundant number, since it is smaller than the sum of its proper divisors (18920286).

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

12585474 is a wasteful number, since it uses less digits than its factorization.

12585474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775 (or 3772 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 12585474 is about 3547.6011613483. The cubic root of 12585474 is about 232.6072207506.

The spelling of 12585474 in words is "twelve million, five hundred eighty-five thousand, four hundred seventy-four".