12248890 has 8 divisors (see below), whose sum is σ = 22048020. Its totient is φ = 4899552.

The previous prime is 12248881. The next prime is 12248897. The reversal of 12248890 is 9884221.

It can be written as a sum of positive squares in 2 ways, for example, as 12229009 + 19881 = 3497^2 + 141^2 .

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 (12248897) 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, 612435 + ... + 612454.

Almost surely, 2^12248890 is an apocalyptic number.

12248890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12248890 is a deficient number, since it is larger than the sum of its proper divisors (9799130).

12248890 is a wasteful number, since it uses less digits than its factorization.

12248890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224896.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 12248890 is about 3499.8414249791. The cubic root of 12248890 is about 230.5148516929.

The spelling of 12248890 in words is "twelve million, two hundred forty-eight thousand, eight hundred ninety".