26244820 has 24 divisors (see below), whose sum is σ = 62987904. Its totient is φ = 8998176.

The previous prime is 26244809. The next prime is 26244839. The reversal of 26244820 is 2844262.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93592 + ... + 93871.

It is an arithmetic number, because the mean of its divisors is an integer number (2624496).

Almost surely, 2^26244820 is an apocalyptic number.

26244820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26244820 is an abundant number, since it is smaller than the sum of its proper divisors (36743084).

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

26244820 is a wasteful number, since it uses less digits than its factorization.

26244820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187479 (or 187477 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 26244820 is about 5122.9698418007. The cubic root of 26244820 is about 297.1765474533.

It can be divided in two parts, 26244 and 820, that multiplied together give a triangular number (21520080 = T₆₅₆₀).

The spelling of 26244820 in words is "twenty-six million, two hundred forty-four thousand, eight hundred twenty".