26778416 has 40 divisors (see below), whose sum is σ = 59546784. Its totient is φ = 11427840.

The previous prime is 26778413. The next prime is 26778419. The reversal of 26778416 is 61487762.

It is an interprime number because it is at equal distance from previous prime (26778413) and next prime (26778419).

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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41456 + ... + 42096.

Almost surely, 2^26778416 is an apocalyptic number.

It is an amenable number.

26778416 is an abundant number, since it is smaller than the sum of its proper divisors (32768368).

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

26778416 is a wasteful number, since it uses less digits than its factorization.

26778416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 1023 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 26778416 is about 5174.7865656469. The cubic root of 26778416 is about 299.1770631659.

The spelling of 26778416 in words is "twenty-six million, seven hundred seventy-eight thousand, four hundred sixteen".