12920450 has 24 divisors (see below), whose sum is σ = 24343680. Its totient is φ = 5101200.

The previous prime is 12920443. The next prime is 12920461. The reversal of 12920450 is 5402921.

It is a super-3 number, since 3×12920450³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2315 + ... + 5585.

It is an arithmetic number, because the mean of its divisors is an integer number (1014320).

Almost surely, 2^12920450 is an apocalyptic number.

12920450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12920450 is a deficient number, since it is larger than the sum of its proper divisors (11423230).

12920450 is a wasteful number, since it uses less digits than its factorization.

12920450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362 (or 3357 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12920450 is about 3594.5027472517. The cubic root of 12920450 is about 234.6528751616.

The spelling of 12920450 in words is "twelve million, nine hundred twenty thousand, four hundred fifty".