12920208 has 40 divisors (see below), whose sum is σ = 38146368. Its totient is φ = 3691392.

The previous prime is 12920203. The next prime is 12920239. The reversal of 12920208 is 80202921.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12920203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18891 + ... + 19562.

Almost surely, 2^12920208 is an apocalyptic number.

It is an amenable number.

12920208 is an abundant number, since it is smaller than the sum of its proper divisors (25226160).

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

12920208 is a wasteful number, since it uses less digits than its factorization.

12920208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38471 (or 38465 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 12920208 is about 3594.4690845798. The cubic root of 12920208 is about 234.6514101365.

It can be divided in two parts, 1292020 and 8, that added together give a triangular number (1292028 = T₁₆₀₇).

The spelling of 12920208 in words is "twelve million, nine hundred twenty thousand, two hundred eight".