13909470384 has 80 divisors (see below), whose sum is σ = 37011346400. Its totient is φ = 4498053120.

The previous prime is 13909470373. The next prime is 13909470401. The reversal of 13909470384 is 48307490931.

It is a happy number.

It is a super-3 number, since 3×13909470384³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608604 + ... + 631044.

It is an arithmetic number, because the mean of its divisors is an integer number (462641830).

Almost surely, 2^13909470384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13909470384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18505673200).

13909470384 is an abundant number, since it is smaller than the sum of its proper divisors (23101876016).

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

13909470384 is a wasteful number, since it uses less digits than its factorization.

13909470384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22838 (or 22832 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 13909470384 in words is "thirteen billion, nine hundred nine million, four hundred seventy thousand, three hundred eighty-four".