26920320 has 128 divisors (see below), whose sum is σ = 98115840. Its totient is φ = 6150144.

The previous prime is 26920297. The next prime is 26920339. The reversal of 26920320 is 2302962.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12439 + ... + 14441.

It is an arithmetic number, because the mean of its divisors is an integer number (766530).

Almost surely, 2^26920320 is an apocalyptic number.

26920320 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 26920320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49057920).

26920320 is an abundant number, since it is smaller than the sum of its proper divisors (71195520).

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

26920320 is a wasteful number, since it uses less digits than its factorization.

26920320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032 (or 2020 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 26920320 is about 5188.4795460713. The cubic root of 26920320 is about 299.7045981101.

The spelling of 26920320 in words is "twenty-six million, nine hundred twenty thousand, three hundred twenty".