26443620 has 144 divisors (see below), whose sum is σ = 94768128. Its totient is φ = 5840640.

The previous prime is 26443607. The next prime is 26443639. The reversal of 26443620 is 2634462.

It is a super-3 number, since 3×26443620³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38722 + ... + 39398.

It is an arithmetic number, because the mean of its divisors is an integer number (658112).

Almost surely, 2^26443620 is an apocalyptic number.

26443620 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 26443620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47384064).

26443620 is an abundant number, since it is smaller than the sum of its proper divisors (68324508).

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

26443620 is a wasteful number, since it uses less digits than its factorization.

26443620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 26443620 is about 5142.3360450286. The cubic root of 26443620 is about 297.9250145400.

The spelling of 26443620 in words is "twenty-six million, four hundred forty-three thousand, six hundred twenty".