12249776 has 80 divisors (see below), whose sum is σ = 30259968. Its totient is φ = 4665600.

The previous prime is 12249773. The next prime is 12249779. The reversal of 12249776 is 67794221.

12249776 = T₆₀₃ + T₆₀₄ + ... + T₆₆₃.

It is an interprime number because it is at equal distance from previous prime (12249773) and next prime (12249779).

It is not an unprimeable number, because it can be changed into a prime (12249773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75071 + ... + 75233.

Almost surely, 2^12249776 is an apocalyptic number.

12249776 is a gapful number since it is divisible by the number (16) 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 12249776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15129984).

12249776 is an abundant number, since it is smaller than the sum of its proper divisors (18010192).

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

12249776 is a wasteful number, since it uses less digits than its factorization.

12249776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 12249776 is about 3499.9679998537. The cubic root of 12249776 is about 230.5204095090.

The spelling of 12249776 in words is "twelve million, two hundred forty-nine thousand, seven hundred seventy-six".