1898479466 has 8 divisors (see below), whose sum is σ = 3066774564. Its totient is φ = 876221280.

The previous prime is 1898479459. The next prime is 1898479469. The reversal of 1898479466 is 6649748981.

It can be written as a sum of positive squares in 2 ways, for example, as 1894773841 + 3705625 = 43529^2 + 1925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1898479399 and 1898479408.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36509195 + ... + 36509246.

Almost surely, 2^1898479466 is an apocalyptic number.

1898479466 is a deficient number, since it is larger than the sum of its proper divisors (1168295098).

1898479466 is a wasteful number, since it uses less digits than its factorization.

1898479466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73018456.

The product of its digits is 20901888, while the sum is 62.

The square root of 1898479466 is about 43571.5442232657. The cubic root of 1898479466 is about 1238.2318421319.

The spelling of 1898479466 in words is "one billion, eight hundred ninety-eight million, four hundred seventy-nine thousand, four hundred sixty-six".