12928450 has 12 divisors (see below), whose sum is σ = 24047010. Its totient is φ = 5171360.

The previous prime is 12928439. The next prime is 12928459. The reversal of 12928450 is 5482921.

It can be written as a sum of positive squares in 3 ways, for example, as 7834401 + 5094049 = 2799^2 + 2257^2 .

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (12928459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129235 + ... + 129334.

Almost surely, 2^12928450 is an apocalyptic number.

12928450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12928450 is a deficient number, since it is larger than the sum of its proper divisors (11118560).

12928450 is a wasteful number, since it uses less digits than its factorization.

12928450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258581 (or 258576 counting only the distinct ones).

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

The square root of 12928450 is about 3595.6153854382. The cubic root of 12928450 is about 234.7012954486.

The spelling of 12928450 in words is "twelve million, nine hundred twenty-eight thousand, four hundred fifty".