26919940 has 12 divisors (see below), whose sum is σ = 56531916. Its totient is φ = 10767968.

The previous prime is 26919931. The next prime is 26919943. The reversal of 26919940 is 4991962.

It can be written as a sum of positive squares in 2 ways, for example, as 4186116 + 22733824 = 2046^2 + 4768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26919893 and 26919902.

It is not an unprimeable number, because it can be changed into a prime (26919943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672979 + ... + 673018.

It is an arithmetic number, because the mean of its divisors is an integer number (4710993).

Almost surely, 2^26919940 is an apocalyptic number.

26919940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26919940 is an abundant number, since it is smaller than the sum of its proper divisors (29611976).

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

26919940 is a wasteful number, since it uses less digits than its factorization.

26919940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346006 (or 1346004 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 26919940 is about 5188.4429263508. The cubic root of 26919940 is about 299.7031879203.

The spelling of 26919940 in words is "twenty-six million, nine hundred nineteen thousand, nine hundred forty".