26400200440 has 16 divisors (see below), whose sum is σ = 59400451080. Its totient is φ = 10560080160.

The previous prime is 26400200429. The next prime is 26400200443. The reversal of 26400200440 is 4400200462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26400200443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330002466 + ... + 330002545.

Almost surely, 2^26400200440 is an apocalyptic number.

26400200440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26400200440 is an abundant number, since it is smaller than the sum of its proper divisors (33000250640).

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

26400200440 is a wasteful number, since it uses less digits than its factorization.

26400200440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660005022 (or 660005018 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 26400200440 its sum of digits (22), we get a palindrome (26400200462).

The spelling of 26400200440 in words is "twenty-six billion, four hundred million, two hundred thousand, four hundred forty".