26906840 has 32 divisors (see below), whose sum is σ = 60821280. Its totient is φ = 10712832.

The previous prime is 26906839. The next prime is 26906843. The reversal of 26906840 is 4860962.

It is a self number, because there is not a number n which added to its sum of digits gives 26906840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26906843) 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, 7877 + ... + 10763.

It is an arithmetic number, because the mean of its divisors is an integer number (1900665).

Almost surely, 2^26906840 is an apocalyptic number.

26906840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26906840 is an abundant number, since it is smaller than the sum of its proper divisors (33914440).

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

26906840 is a wasteful number, since it uses less digits than its factorization.

26906840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131 (or 3127 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 26906840 is about 5187.1803515976. The cubic root of 26906840 is about 299.6545653653.

The spelling of 26906840 in words is "twenty-six million, nine hundred six thousand, eight hundred forty".