12954978 has 40 divisors (see below), whose sum is σ = 29243280. Its totient is φ = 4286520.

The previous prime is 12954971. The next prime is 12954989. The reversal of 12954978 is 87945921.

12954978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12954971) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33993 + ... + 34371.

It is an arithmetic number, because the mean of its divisors is an integer number (731082).

Almost surely, 2^12954978 is an apocalyptic number.

12954978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12954978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14621640).

12954978 is an abundant number, since it is smaller than the sum of its proper divisors (16288302).

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

12954978 is a wasteful number, since it uses less digits than its factorization.

12954978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 595 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 12954978 is about 3599.3024324166. The cubic root of 12954978 is about 234.8617143261.

The spelling of 12954978 in words is "twelve million, nine hundred fifty-four thousand, nine hundred seventy-eight".