1898343480 has 256 divisors, whose sum is σ = 6503846400. Its totient is φ = 439040000.

The previous prime is 1898343463. The next prime is 1898343481. The reversal of 1898343480 is 843438981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1898343481) 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, 3866035 + ... + 3866525.

It is an arithmetic number, because the mean of its divisors is an integer number (25405650).

Almost surely, 2^1898343480 is an apocalyptic number.

1898343480 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 1898343480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3251923200).

1898343480 is an abundant number, since it is smaller than the sum of its proper divisors (4605502920).

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

1898343480 is a wasteful number, since it uses less digits than its factorization.

1898343480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 1898343480 is about 43569.9837043807. The cubic root of 1898343480 is about 1238.2022770301.

The spelling of 1898343480 in words is "one billion, eight hundred ninety-eight million, three hundred forty-three thousand, four hundred eighty".