26678740 has 24 divisors (see below), whose sum is σ = 61119072. Its totient is φ = 9701280.

The previous prime is 26678737. The next prime is 26678759. The reversal of 26678740 is 4787662.

It is a junction number, because it is equal to n+sod(n) for n = 26678693 and 26678702.

It is a congruent number.

It is an unprimeable number.

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, 60414 + ... + 60853.

It is an arithmetic number, because the mean of its divisors is an integer number (2546628).

Almost surely, 2^26678740 is an apocalyptic number.

26678740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26678740 is an abundant number, since it is smaller than the sum of its proper divisors (34440332).

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

26678740 is a wasteful number, since it uses less digits than its factorization.

26678740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121287 (or 121285 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 26678740 is about 5165.1466581308. The cubic root of 26678740 is about 298.8053975454.

The spelling of 26678740 in words is "twenty-six million, six hundred seventy-eight thousand, seven hundred forty".