12285490 has 32 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 4190784.

The previous prime is 12285479. The next prime is 12285503. The reversal of 12285490 is 9458221.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20211 + ... + 20809.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^12285490 is an apocalyptic number.

12285490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12285490 is an abundant number, since it is smaller than the sum of its proper divisors (13116110).

12285490 is a wasteful number, since it uses less digits than its factorization.

12285490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 12285490 is about 3505.0663331812. The cubic root of 12285490 is about 230.7442181722.

The spelling of 12285490 in words is "twelve million, two hundred eighty-five thousand, four hundred ninety".