2013244440 has 64 divisors (see below), whose sum is σ = 6050972160. Its totient is φ = 535866240.

The previous prime is 2013244417. The next prime is 2013244507. The reversal of 2013244440 is 444423102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2013244440.

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, 50305 + ... + 80975.

It is an arithmetic number, because the mean of its divisors is an integer number (94546440).

Almost surely, 2^2013244440 is an apocalyptic number.

2013244440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013244440 is an abundant number, since it is smaller than the sum of its proper divisors (4037727720).

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

2013244440 is a wasteful number, since it uses less digits than its factorization.

2013244440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31232 (or 31228 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2013244440 is about 44869.1925490085. The cubic root of 2013244440 is about 1262.6960913597.

Adding to 2013244440 its reverse (444423102), we get a palindrome (2457667542).

The spelling of 2013244440 in words is "two billion, thirteen million, two hundred forty-four thousand, four hundred forty".