1838988 has 36 divisors (see below), whose sum is σ = 4852848. Its totient is φ = 586080.

The previous prime is 1838987. The next prime is 1838989. The reversal of 1838988 is 8898381.

It is an interprime number because it is at equal distance from previous prime (1838987) and next prime (1838989).

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

It is an Ulam number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1838983) 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, 283 + ... + 1938.

2^1838988 is an apocalyptic number.

1838988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1838988 is an abundant number, since it is smaller than the sum of its proper divisors (3013860).

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

1838988 is a wasteful number, since it uses less digits than its factorization.

1838988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254 (or 2249 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 1838988 is about 1356.0929171705. The cubic root of 1838988 is about 122.5160439905.

The spelling of 1838988 in words is "one million, eight hundred thirty-eight thousand, nine hundred eighty-eight".