26778412 has 24 divisors (see below), whose sum is σ = 48263040. Its totient is φ = 12992640.

The previous prime is 26778377. The next prime is 26778413. The reversal of 26778412 is 21487762.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (26778413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43813 + ... + 44419.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 2^26778412 is an apocalyptic number.

It is an amenable number.

26778412 is a deficient number, since it is larger than the sum of its proper divisors (21484628).

26778412 is a wasteful number, since it uses less digits than its factorization.

26778412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 919 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 26778412 is about 5174.7861791576. The cubic root of 26778412 is about 299.1770482694.

The spelling of 26778412 in words is "twenty-six million, seven hundred seventy-eight thousand, four hundred twelve".