13840025220 has 216 divisors, whose sum is σ = 50638521024. Its totient is φ = 2996839296.

The previous prime is 13840025197. The next prime is 13840025273. The reversal of 13840025220 is 2252004831.

13840025220 is a `hidden beast` number, since 1 + 3 + 8 + 400 + 252 + 2 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 439647 + ... + 470073.

Almost surely, 2^13840025220 is an apocalyptic number.

13840025220 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 13840025220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25319260512).

13840025220 is an abundant number, since it is smaller than the sum of its proper divisors (36798495804).

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

13840025220 is a wasteful number, since it uses less digits than its factorization.

13840025220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30487 (or 30463 counting only the distinct ones).

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

The spelling of 13840025220 in words is "thirteen billion, eight hundred forty million, twenty-five thousand, two hundred twenty".