2013868494 has 40 divisors (see below), whose sum is σ = 4922794008. Its totient is φ = 610262640.

The previous prime is 2013868429. The next prime is 2013868499. The reversal of 2013868494 is 4948683102.

It is a happy number.

2013868494 is a `hidden beast` number, since 20 + 138 + 6 + 8 + 494 = 666.

It is a super-2 number, since 2×2013868494² = 8111332622251656072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013868499) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 563277 + ... + 566840.

Almost surely, 2^2013868494 is an apocalyptic number.

2013868494 is an abundant number, since it is smaller than the sum of its proper divisors (2908925514).

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

2013868494 is a wasteful number, since it uses less digits than its factorization.

2013868494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130142 (or 1130133 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 2013868494 is about 44876.1461580649. The cubic root of 2013868494 is about 1262.8265456529.

The spelling of 2013868494 in words is "two billion, thirteen million, eight hundred sixty-eight thousand, four hundred ninety-four".