26378216 has 16 divisors (see below), whose sum is σ = 49735140. Its totient is φ = 13115520.

The previous prime is 26378201. The next prime is 26378249. The reversal of 26378216 is 61287362.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20666116 + 5712100 = 4546^2 + 2390^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7661 + ... + 10556.

Almost surely, 2^26378216 is an apocalyptic number.

It is an amenable number.

26378216 is a deficient number, since it is larger than the sum of its proper divisors (23356924).

26378216 is a wasteful number, since it uses less digits than its factorization.

26378216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18404 (or 18400 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 26378216 is about 5135.9727413607. The cubic root of 26378216 is about 297.6791887101.

The spelling of 26378216 in words is "twenty-six million, three hundred seventy-eight thousand, two hundred sixteen".