12900290 has 16 divisors (see below), whose sum is σ = 25006968. Its totient is φ = 4763136.

The previous prime is 12900289. The next prime is 12900299. The reversal of 12900290 is 9200921.

12900290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3713329 + 9186961 = 1927^2 + 3031^2 .

It is not an unprimeable number, because it can be changed into a prime (12900299) 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, 49487 + ... + 49746.

Almost surely, 2^12900290 is an apocalyptic number.

12900290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12900290 is a deficient number, since it is larger than the sum of its proper divisors (12106678).

12900290 is a wasteful number, since it uses less digits than its factorization.

12900290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99253.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 12900290 is about 3591.6973703251. The cubic root of 12900290 is about 234.5307673270.

The spelling of 12900290 in words is "twelve million, nine hundred thousand, two hundred ninety".