26424840 has 96 divisors (see below), whose sum is σ = 85907520. Its totient is φ = 6499584.

The previous prime is 26424821. The next prime is 26424841. The reversal of 26424840 is 4842462.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 26424798 and 26424807.

It is not an unprimeable number, because it can be changed into a prime (26424841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19629 + ... + 20931.

It is an arithmetic number, because the mean of its divisors is an integer number (894870).

Almost surely, 2^26424840 is an apocalyptic number.

26424840 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 26424840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42953760).

26424840 is an abundant number, since it is smaller than the sum of its proper divisors (59482680).

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

26424840 is a wasteful number, since it uses less digits than its factorization.

26424840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 26424840 is about 5140.5097023544. The cubic root of 26424840 is about 297.8544700279.

The spelling of 26424840 in words is "twenty-six million, four hundred twenty-four thousand, eight hundred forty".