26969440 has 24 divisors (see below), whose sum is σ = 63715680. Its totient is φ = 10787712.

The previous prime is 26969413. The next prime is 26969441. The reversal of 26969440 is 4496962.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 26969393 and 26969402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26969441) 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 3 ways as a sum of consecutive naturals, for example, 84120 + ... + 84439.

It is an arithmetic number, because the mean of its divisors is an integer number (2654820).

Almost surely, 2^26969440 is an apocalyptic number.

26969440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26969440 is an abundant number, since it is smaller than the sum of its proper divisors (36746240).

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

26969440 is a wasteful number, since it uses less digits than its factorization.

26969440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168574 (or 168566 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 26969440 is about 5193.2109527729. The cubic root of 26969440 is about 299.8867720850.

The spelling of 26969440 in words is "twenty-six million, nine hundred sixty-nine thousand, four hundred forty".