12969450 has 96 divisors (see below), whose sum is σ = 38539200. Its totient is φ = 3188160.

The previous prime is 12969449. The next prime is 12969469. The reversal of 12969450 is 5496921.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17181 + ... + 17919.

It is an arithmetic number, because the mean of its divisors is an integer number (401450).

Almost surely, 2^12969450 is an apocalyptic number.

12969450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12969450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19269600).

12969450 is an abundant number, since it is smaller than the sum of its proper divisors (25569750).

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

12969450 is a wasteful number, since it uses less digits than its factorization.

12969450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 12969450 is about 3601.3122608294. The cubic root of 12969450 is about 234.9491364190.

The spelling of 12969450 in words is "twelve million, nine hundred sixty-nine thousand, four hundred fifty".