2013021240 has 32 divisors (see below), whose sum is σ = 6039064080. Its totient is φ = 536805632.

The previous prime is 2013021229. The next prime is 2013021259. The reversal of 2013021240 is 421203102.

It is a super-2 number, since 2×2013021240² = 8104509025382275200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8387469 + ... + 8387708.

Almost surely, 2^2013021240 is an apocalyptic number.

2013021240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013021240 is an abundant number, since it is smaller than the sum of its proper divisors (4026042840).

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

2013021240 is a wasteful number, since it uses less digits than its factorization.

2013021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16775191 (or 16775187 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2013021240 is about 44866.7052501072. The cubic root of 2013021240 is about 1262.6494263550.

Adding to 2013021240 its reverse (421203102), we get a palindrome (2434224342).

The spelling of 2013021240 in words is "two billion, thirteen million, twenty-one thousand, two hundred forty".