26978412 has 24 divisors (see below), whose sum is σ = 63302512. Its totient is φ = 8942400.

The previous prime is 26978389. The next prime is 26978417. The reversal of 26978412 is 21487962.

It is not an unprimeable number, because it can be changed into a prime (26978417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4039 + ... + 8382.

Almost surely, 2^26978412 is an apocalyptic number.

It is an amenable number.

26978412 is an abundant number, since it is smaller than the sum of its proper divisors (36324100).

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

26978412 is a wasteful number, since it uses less digits than its factorization.

26978412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12609 (or 12607 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 26978412 is about 5194.0747010416. The cubic root of 26978412 is about 299.9200231253.

The spelling of 26978412 in words is "twenty-six million, nine hundred seventy-eight thousand, four hundred twelve".