1898479464 has 128 divisors (see below), whose sum is σ = 5528048640. Its totient is φ = 532127232.

The previous prime is 1898479459. The next prime is 1898479469. The reversal of 1898479464 is 4649748981.

1898479464 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1898479459) and next prime (1898479469).

It is a junction number, because it is equal to n+sod(n) for n = 1898479398 and 1898479407.

It is not an unprimeable number, because it can be changed into a prime (1898479469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3470439 + ... + 3470985.

It is an arithmetic number, because the mean of its divisors is an integer number (43187880).

Almost surely, 2^1898479464 is an apocalyptic number.

1898479464 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 1898479464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2764024320).

1898479464 is an abundant number, since it is smaller than the sum of its proper divisors (3629569176).

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

1898479464 is a wasteful number, since it uses less digits than its factorization.

1898479464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919 (or 915 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 60.

The square root of 1898479464 is about 43571.5442003150. The cubic root of 1898479464 is about 1238.2318416971.

The spelling of 1898479464 in words is "one billion, eight hundred ninety-eight million, four hundred seventy-nine thousand, four hundred sixty-four".