1981848 has 32 divisors (see below), whose sum is σ = 5405760. Its totient is φ = 600480.

The previous prime is 1981813. The next prime is 1981853. The reversal of 1981848 is 8481891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3490 + ... + 4017.

It is an arithmetic number, because the mean of its divisors is an integer number (168930).

2^1981848 is an apocalyptic number.

It is an amenable number.

1981848 is an abundant number, since it is smaller than the sum of its proper divisors (3423912).

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

1981848 is a wasteful number, since it uses less digits than its factorization.

1981848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527 (or 7523 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The square root of 1981848 is about 1407.7812330046. The cubic root of 1981848 is about 125.6097778640.

The spelling of 1981848 in words is "one million, nine hundred eighty-one thousand, eight hundred forty-eight".