26244840 has 128 divisors (see below), whose sum is σ = 84706560. Its totient is φ = 6488064.

The previous prime is 26244839. The next prime is 26244851. The reversal of 26244840 is 4844262.

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 = 26244798 and 26244807.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101992 + ... + 102248.

It is an arithmetic number, because the mean of its divisors is an integer number (661770).

Almost surely, 2^26244840 is an apocalyptic number.

26244840 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 26244840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42353280).

26244840 is an abundant number, since it is smaller than the sum of its proper divisors (58461720).

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

26244840 is a wasteful number, since it uses less digits than its factorization.

26244840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 327 counting only the distinct ones).

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

The square root of 26244840 is about 5122.9717937931. The cubic root of 26244840 is about 297.1766229416.

The spelling of 26244840 in words is "twenty-six million, two hundred forty-four thousand, eight hundred forty".