26278340 has 24 divisors (see below), whose sum is σ = 60201792. Its totient is φ = 9555680.

The previous prime is 26278339. The next prime is 26278361. The reversal of 26278340 is 4387262.

It is a junction number, because it is equal to n+sod(n) for n = 26278297 and 26278306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59504 + ... + 59943.

It is an arithmetic number, because the mean of its divisors is an integer number (2508408).

Almost surely, 2^26278340 is an apocalyptic number.

26278340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26278340 is an abundant number, since it is smaller than the sum of its proper divisors (33923452).

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

26278340 is a wasteful number, since it uses less digits than its factorization.

26278340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119467 (or 119465 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 26278340 is about 5126.2403377134. The cubic root of 26278340 is about 297.3030120277.

The spelling of 26278340 in words is "twenty-six million, two hundred seventy-eight thousand, three hundred forty".