2013489844 has 6 divisors (see below), whose sum is σ = 3523607234. Its totient is φ = 1006744920.

The previous prime is 2013489833. The next prime is 2013489853. The reversal of 2013489844 is 4489843102.

It can be written as a sum of positive squares in only one way, i.e., 1579267600 + 434222244 = 39740^2 + 20838^2 .

It is a super-2 number, since 2×2013489844² = 8108282703782288672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2013489844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251686227 + ... + 251686234.

Almost surely, 2^2013489844 is an apocalyptic number.

It is an amenable number.

2013489844 is a deficient number, since it is larger than the sum of its proper divisors (1510117390).

2013489844 is a wasteful number, since it uses less digits than its factorization.

2013489844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503372465 (or 503372463 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 2013489844 is about 44871.9271259882. The cubic root of 2013489844 is about 1262.7473946318.

The spelling of 2013489844 in words is "two billion, thirteen million, four hundred eighty-nine thousand, eight hundred forty-four".