12838890 has 32 divisors (see below), whose sum is σ = 30943296. Its totient is φ = 3409280.

The previous prime is 12838877. The next prime is 12838907. The reversal of 12838890 is 9883821.

It is a super-3 number, since 3×12838890³ (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 15 ways as a sum of consecutive naturals, for example, 7669 + ... + 9191.

It is an arithmetic number, because the mean of its divisors is an integer number (966978).

Almost surely, 2^12838890 is an apocalyptic number.

12838890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12838890 is an abundant number, since it is smaller than the sum of its proper divisors (18104406).

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

12838890 is a wasteful number, since it uses less digits than its factorization.

12838890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 12838890 is about 3583.1396846900. The cubic root of 12838890 is about 234.1580858856.

The spelling of 12838890 in words is "twelve million, eight hundred thirty-eight thousand, eight hundred ninety".