26344440 has 160 divisors (see below), whose sum is σ = 90953280. Its totient is φ = 6835968.

The previous prime is 26344421. The next prime is 26344463. The reversal of 26344440 is 4444362.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 152194 + ... + 152366.

It is an arithmetic number, because the mean of its divisors is an integer number (568458).

Almost surely, 2^26344440 is an apocalyptic number.

26344440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26344440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45476640).

26344440 is an abundant number, since it is smaller than the sum of its proper divisors (64608840).

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

26344440 is a wasteful number, since it uses less digits than its factorization.

26344440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 26344440 is about 5132.6835086531. The cubic root of 26344440 is about 297.5520799533.

The spelling of 26344440 in words is "twenty-six million, three hundred forty-four thousand, four hundred forty".