26443900 has 72 divisors (see below), whose sum is σ = 67419296. Its totient is φ = 8812800.

The previous prime is 26443897. The next prime is 26443903. The reversal of 26443900 is 934462.

It is an interprime number because it is at equal distance from previous prime (26443897) and next prime (26443903).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26443903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25390 + ... + 26410.

Almost surely, 2^26443900 is an apocalyptic number.

26443900 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 26443900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33709648).

26443900 is an abundant number, since it is smaller than the sum of its proper divisors (40975396).

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

26443900 is a wasteful number, since it uses less digits than its factorization.

26443900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 26443900 is about 5142.3632699373. The cubic root of 26443900 is about 297.9260660691.

The spelling of 26443900 in words is "twenty-six million, four hundred forty-three thousand, nine hundred".