12850000 has 60 divisors (see below), whose sum is σ = 31240188. Its totient is φ = 5120000.

The previous prime is 12849973. The next prime is 12850039. The reversal of 12850000 is 5821.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6739216 + 6110784 = 2596^2 + 2472^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49872 + ... + 50128.

Almost surely, 2^12850000 is an apocalyptic number.

12850000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12850000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15620094).

12850000 is an abundant number, since it is smaller than the sum of its proper divisors (18390188).

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

12850000 is an frugal number, since it uses more digits than its factorization.

12850000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 12850000 is about 3584.6896657870. The cubic root of 12850000 is about 234.2256085012.

Adding to 12850000 its reverse (5821), we get a palindrome (12855821).

The spelling of 12850000 in words is "twelve million, eight hundred fifty thousand".