6013939920 has 80 divisors (see below), whose sum is σ = 18717676992. Its totient is φ = 1597312000.

The previous prime is 6013939913. The next prime is 6013939979. The reversal of 6013939920 is 299393106.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×6013939920² = 72334946722739212800, which contains 22 as substring.

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, 10324 + ... + 110156.

Almost surely, 2^6013939920 is an apocalyptic number.

6013939920 is a gapful number since it is divisible by the number (60) 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 6013939920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9358838496).

6013939920 is an abundant number, since it is smaller than the sum of its proper divisors (12703737072).

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

6013939920 is a wasteful number, since it uses less digits than its factorization.

6013939920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100100 (or 100094 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 6013939920 is about 77549.5965173256. The cubic root of 6013939920 is about 1818.5267552772.

The spelling of 6013939920 in words is "six billion, thirteen million, nine hundred thirty-nine thousand, nine hundred twenty".