26778414 has 16 divisors (see below), whose sum is σ = 57676752. Its totient is φ = 8239488.

The previous prime is 26778413. The next prime is 26778419. The reversal of 26778414 is 41487762.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26778413) 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, 171579 + ... + 171734.

It is an arithmetic number, because the mean of its divisors is an integer number (3604797).

Almost surely, 2^26778414 is an apocalyptic number.

26778414 is an abundant number, since it is smaller than the sum of its proper divisors (30898338).

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

26778414 is a wasteful number, since it uses less digits than its factorization.

26778414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343331.

The product of its digits is 75264, while the sum is 39.

The square root of 26778414 is about 5174.7863724022. The cubic root of 26778414 is about 299.1770557177.

The spelling of 26778414 in words is "twenty-six million, seven hundred seventy-eight thousand, four hundred fourteen".