1898434314 has 128 divisors (see below), whose sum is σ = 4934684160. Its totient is φ = 529804800.

The previous prime is 1898434313. The next prime is 1898434331. The reversal of 1898434314 is 4134348981.

1898434314 is a `hidden beast` number, since 189 + 8 + 434 + 31 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1898434314.

It is not an unprimeable number, because it can be changed into a prime (1898434313) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6479152 + ... + 6479444.

It is an arithmetic number, because the mean of its divisors is an integer number (38552220).

Almost surely, 2^1898434314 is an apocalyptic number.

1898434314 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1898434314, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2467342080).

1898434314 is an abundant number, since it is smaller than the sum of its proper divisors (3036249846).

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

1898434314 is a wasteful number, since it uses less digits than its factorization.

1898434314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 647 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 1898434314 is about 43571.0260838553. The cubic root of 1898434314 is about 1238.2220256641. Note that the first 3 decimals are identical.

The spelling of 1898434314 in words is "one billion, eight hundred ninety-eight million, four hundred thirty-four thousand, three hundred fourteen".