2013320040 has 64 divisors (see below), whose sum is σ = 6061556160. Its totient is φ = 534965760.

The previous prime is 2013320027. The next prime is 2013320107. The reversal of 2013320040 is 400233102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 15.

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, 3867 + ... + 63573.

It is an arithmetic number, because the mean of its divisors is an integer number (94711815).

Almost surely, 2^2013320040 is an apocalyptic number.

2013320040 is a gapful number since it is divisible by the number (20) 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 2013320040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3030778080).

2013320040 is an abundant number, since it is smaller than the sum of its proper divisors (4048236120).

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

2013320040 is a wasteful number, since it uses less digits than its factorization.

2013320040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60002 (or 59998 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2013320040 is about 44870.0349899574. The cubic root of 2013320040 is about 1262.7118964664.

Adding to 2013320040 its reverse (400233102), we get a palindrome (2413553142).

The spelling of 2013320040 in words is "two billion, thirteen million, three hundred twenty thousand, forty".