12946890 has 32 divisors (see below), whose sum is σ = 33898176. Its totient is φ = 3138560.

The previous prime is 12946883. The next prime is 12946903. The reversal of 12946890 is 9864921.

12946890 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 19287 + ... + 19946.

It is an arithmetic number, because the mean of its divisors is an integer number (1059318).

Almost surely, 2^12946890 is an apocalyptic number.

12946890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12946890 is an abundant number, since it is smaller than the sum of its proper divisors (20951286).

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

12946890 is a wasteful number, since it uses less digits than its factorization.

12946890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39254.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 12946890 is about 3598.1787059567. The cubic root of 12946890 is about 234.8128281762.

The spelling of 12946890 in words is "twelve million, nine hundred forty-six thousand, eight hundred ninety".