13940621184 has 128 divisors (see below), whose sum is σ = 42604992000. Its totient is φ = 3956189184.

The previous prime is 13940621159. The next prime is 13940621209. The reversal of 13940621184 is 48112604931.

It is an interprime number because it is at equal distance from previous prime (13940621159) and next prime (13940621209).

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

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, 383109 + ... + 417915.

It is an arithmetic number, because the mean of its divisors is an integer number (332851500).

Almost surely, 2^13940621184 is an apocalyptic number.

13940621184 is a gapful number since it is divisible by the number (14) 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 13940621184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21302496000).

13940621184 is an abundant number, since it is smaller than the sum of its proper divisors (28664370816).

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

13940621184 is a wasteful number, since it uses less digits than its factorization.

13940621184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34980 (or 34968 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 13940621184 in words is "thirteen billion, nine hundred forty million, six hundred twenty-one thousand, one hundred eighty-four".