1898684004 has 96 divisors (see below), whose sum is σ = 5185990656. Its totient is φ = 529390080.

The previous prime is 1898683999. The next prime is 1898684023. The reversal of 1898684004 is 4004868981.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2340759 + ... + 2341569.

It is an arithmetic number, because the mean of its divisors is an integer number (54020736).

Almost surely, 2^1898684004 is an apocalyptic number.

1898684004 is a gapful number since it is divisible by the number (14) 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 1898684004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2592995328).

1898684004 is an abundant number, since it is smaller than the sum of its proper divisors (3287306652).

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

1898684004 is a wasteful number, since it uses less digits than its factorization.

1898684004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 1898684004 is about 43573.8913111969. The cubic root of 1898684004 is about 1238.2763086597.

The spelling of 1898684004 in words is "one billion, eight hundred ninety-eight million, six hundred eighty-four thousand, four".