13540022208 has 84 divisors (see below), whose sum is σ = 40247483640. Its totient is φ = 4513335552.

The previous prime is 13540022143. The next prime is 13540022219. The reversal of 13540022208 is 80222004531.

13540022208 is a `hidden beast` number, since 1 + 35 + 400 + 2 + 220 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419763 + ... + 450866.

It is an arithmetic number, because the mean of its divisors is an integer number (479136710).

Almost surely, 2^13540022208 is an apocalyptic number.

13540022208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13540022208 is an abundant number, since it is smaller than the sum of its proper divisors (26707461432).

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

13540022208 is an frugal number, since it uses more digits than its factorization.

13540022208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870656 (or 870634 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 13540022208 its reverse (80222004531), we get a palindrome (93762026739).

The spelling of 13540022208 in words is "thirteen billion, five hundred forty million, twenty-two thousand, two hundred eight".