26442204240 has 80 divisors (see below), whose sum is σ = 86285102400. Its totient is φ = 6680134656.

The previous prime is 26442204193. The next prime is 26442204241. The reversal of 26442204240 is 4240224462.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 26442204198 and 26442204207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26442204241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2894805 + ... + 2903924.

It is an arithmetic number, because the mean of its divisors is an integer number (1078563780).

Almost surely, 2^26442204240 is an apocalyptic number.

26442204240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26442204240 is an abundant number, since it is smaller than the sum of its proper divisors (59842898160).

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

26442204240 is a wasteful number, since it uses less digits than its factorization.

26442204240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798764 (or 5798758 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The spelling of 26442204240 in words is "twenty-six billion, four hundred forty-two million, two hundred four thousand, two hundred forty".