13890559320 has 256 divisors, whose sum is σ = 50637312000. Its totient is φ = 3359001600.

The previous prime is 13890559313. The next prime is 13890559321. The reversal of 13890559320 is 2395509831.

13890559320 is a `hidden beast` number, since 1 + 3 + 8 + 90 + 559 + 3 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890559321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5689300 + ... + 5691740.

It is an arithmetic number, because the mean of its divisors is an integer number (197802000).

Almost surely, 2^13890559320 is an apocalyptic number.

13890559320 is a gapful number since it is divisible by the number (10) 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 13890559320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25318656000).

13890559320 is an abundant number, since it is smaller than the sum of its proper divisors (36746752680).

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

13890559320 is a wasteful number, since it uses less digits than its factorization.

13890559320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951 (or 2941 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 13890559320 in words is "thirteen billion, eight hundred ninety million, five hundred fifty-nine thousand, three hundred twenty".