1998459962 has 8 divisors (see below), whose sum is σ = 2998128276. Its totient is φ = 999083872.

The previous prime is 1998459943. The next prime is 1998459971. The reversal of 1998459962 is 2699548991.

It can be written as a sum of positive squares in 2 ways, for example, as 1415189161 + 583270801 = 37619^2 + 24151^2 .

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 = 1998459895 and 1998459904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55073 + ... + 83844.

Almost surely, 2^1998459962 is an apocalyptic number.

1998459962 is a deficient number, since it is larger than the sum of its proper divisors (999668314).

1998459962 is a wasteful number, since it uses less digits than its factorization.

1998459962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146112.

The product of its digits is 12597120, while the sum is 62.

The square root of 1998459962 is about 44704.1380858640. The cubic root of 1998459962 is about 1259.5975791388.

The spelling of 1998459962 in words is "one billion, nine hundred ninety-eight million, four hundred fifty-nine thousand, nine hundred sixty-two".