12485890 has 8 divisors (see below), whose sum is σ = 22474620. Its totient is φ = 4994352.

The previous prime is 12485887. The next prime is 12485897. The reversal of 12485890 is 9858421.

It can be written as a sum of positive squares in 2 ways, for example, as 11431161 + 1054729 = 3381^2 + 1027^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12485897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624285 + ... + 624304.

Almost surely, 2^12485890 is an apocalyptic number.

12485890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12485890 is a deficient number, since it is larger than the sum of its proper divisors (9988730).

12485890 is a wasteful number, since it uses less digits than its factorization.

12485890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248596.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 12485890 is about 3533.5378871607. The cubic root of 12485890 is about 231.9920850451.

The spelling of 12485890 in words is "twelve million, four hundred eighty-five thousand, eight hundred ninety".