2013136240 has 20 divisors (see below), whose sum is σ = 4680541944. Its totient is φ = 805254464.

The previous prime is 2013136231. The next prime is 2013136247. The reversal of 2013136240 is 426313102.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013136247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12582022 + ... + 12582181.

Almost surely, 2^2013136240 is an apocalyptic number.

2013136240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013136240 is an abundant number, since it is smaller than the sum of its proper divisors (2667405704).

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

2013136240 is a wasteful number, since it uses less digits than its factorization.

2013136240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25164216 (or 25164210 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2013136240 is about 44867.9868057393. The cubic root of 2013136240 is about 1262.6734701349.

Adding to 2013136240 its reverse (426313102), we get a palindrome (2439449342).

It can be divided in two parts, 201 and 3136240, that added together give a square (3136441 = 1771²).

The spelling of 2013136240 in words is "two billion, thirteen million, one hundred thirty-six thousand, two hundred forty".