26378988 has 24 divisors (see below), whose sum is σ = 62396208. Its totient is φ = 8672256.

The previous prime is 26378941. The next prime is 26378993. The reversal of 26378988 is 88987362.

It is a self number, because there is not a number n which added to its sum of digits gives 26378988.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14181 + ... + 15932.

It is an arithmetic number, because the mean of its divisors is an integer number (2599842).

Almost surely, 2^26378988 is an apocalyptic number.

It is an amenable number.

26378988 is an abundant number, since it is smaller than the sum of its proper divisors (36017220).

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

26378988 is a wasteful number, since it uses less digits than its factorization.

26378988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30193 (or 30191 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 26378988 is about 5136.0478969729. The cubic root of 26378988 is about 297.6820926984.

The spelling of 26378988 in words is "twenty-six million, three hundred seventy-eight thousand, nine hundred eighty-eight".