26945778 has 32 divisors (see below), whose sum is σ = 55959552. Its totient is φ = 8643600.

The previous prime is 26945771. The next prime is 26945791. The reversal of 26945778 is 87754962.

It is not an unprimeable number, because it can be changed into a prime (26945771) 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 15 ways as a sum of consecutive naturals, for example, 17583 + ... + 19053.

It is an arithmetic number, because the mean of its divisors is an integer number (1748736).

Almost surely, 2^26945778 is an apocalyptic number.

26945778 is an abundant number, since it is smaller than the sum of its proper divisors (29013774).

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

26945778 is a wasteful number, since it uses less digits than its factorization.

26945778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590.

The product of its digits is 846720, while the sum is 48.

The square root of 26945778 is about 5190.9322862083. The cubic root of 26945778 is about 299.7990431957.

The spelling of 26945778 in words is "twenty-six million, nine hundred forty-five thousand, seven hundred seventy-eight".