26938220 has 48 divisors (see below), whose sum is σ = 59179680. Its totient is φ = 10289664.

The previous prime is 26938207. The next prime is 26938243. The reversal of 26938220 is 2283962.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43352 + ... + 43968.

It is an arithmetic number, because the mean of its divisors is an integer number (1232910).

Almost surely, 2^26938220 is an apocalyptic number.

26938220 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 26938220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29589840).

26938220 is an abundant number, since it is smaller than the sum of its proper divisors (32241460).

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

26938220 is a wasteful number, since it uses less digits than its factorization.

26938220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 26938220 is about 5190.2042349025. The cubic root of 26938220 is about 299.7710104423.

The spelling of 26938220 in words is "twenty-six million, nine hundred thirty-eight thousand, two hundred twenty".