26328420 has 72 divisors (see below), whose sum is σ = 80668224. Its totient is φ = 6950208.

The previous prime is 26328403. The next prime is 26328451. The reversal of 26328420 is 2482362.

26328420 is a `hidden beast` number, since 2 + 632 + 8 + 4 + 20 = 666.

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 23 ways as a sum of consecutive naturals, for example, 18577 + ... + 19943.

It is an arithmetic number, because the mean of its divisors is an integer number (1120392).

Almost surely, 2^26328420 is an apocalyptic number.

26328420 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 26328420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40334112).

26328420 is an abundant number, since it is smaller than the sum of its proper divisors (54339804).

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

26328420 is a wasteful number, since it uses less digits than its factorization.

26328420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 26328420 is about 5131.1226841696. The cubic root of 26328420 is about 297.4917541202.

The spelling of 26328420 in words is "twenty-six million, three hundred twenty-eight thousand, four hundred twenty".