1898984880 has 240 divisors, whose sum is σ = 7167416256. Its totient is φ = 447068160.

The previous prime is 1898984837. The next prime is 1898984939. The reversal of 1898984880 is 884898981.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×1898984880² = 7212287148937228800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210870 + ... + 219690.

Almost surely, 2^1898984880 is an apocalyptic number.

1898984880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1898984880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3583708128).

1898984880 is an abundant number, since it is smaller than the sum of its proper divisors (5268431376).

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

1898984880 is a wasteful number, since it uses less digits than its factorization.

1898984880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8876 (or 8867 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 63.

The square root of 1898984880 is about 43577.3436547020. The cubic root of 1898984880 is about 1238.3417132493.

The spelling of 1898984880 in words is "one billion, eight hundred ninety-eight million, nine hundred eighty-four thousand, eight hundred eighty".