1881948208 has 40 divisors (see below), whose sum is σ = 4172510720. Its totient is φ = 805515840.

The previous prime is 1881948203. The next prime is 1881948209. The reversal of 1881948208 is 8028491881.

It is a super-2 number, since 2×1881948208² = 7083458115188822528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1881948203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80473 + ... + 101191.

It is an arithmetic number, because the mean of its divisors is an integer number (104312768).

Almost surely, 2^1881948208 is an apocalyptic number.

It is an amenable number.

1881948208 is an abundant number, since it is smaller than the sum of its proper divisors (2290562512).

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

1881948208 is a wasteful number, since it uses less digits than its factorization.

1881948208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21545 (or 21539 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 49.

The square root of 1881948208 is about 43381.4269935879. The cubic root of 1881948208 is about 1234.6273377178.

The spelling of 1881948208 in words is "one billion, eight hundred eighty-one million, nine hundred forty-eight thousand, two hundred eight".