1838288268 has 36 divisors (see below), whose sum is σ = 4920126120. Its totient is φ = 576717696.

The previous prime is 1838288239. The next prime is 1838288269. The reversal of 1838288268 is 8628828381.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1838288269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1501258 + ... + 1502481.

It is an arithmetic number, because the mean of its divisors is an integer number (136670170).

Almost surely, 2^1838288268 is an apocalyptic number.

1838288268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1838288268 is an abundant number, since it is smaller than the sum of its proper divisors (3081837852).

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

1838288268 is a wasteful number, since it uses less digits than its factorization.

1838288268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003766 (or 3003761 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 54.

The square root of 1838288268 is about 42875.2640574959. The cubic root of 1838288268 is about 1225.0050296614.

The spelling of 1838288268 in words is "one billion, eight hundred thirty-eight million, two hundred eighty-eight thousand, two hundred sixty-eight".