1598198958 has 16 divisors (see below), whose sum is σ = 3551553360. Its totient is φ = 532732968.

The previous prime is 1598198939. The next prime is 1598198969. The reversal of 1598198958 is 8598918951.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1598198895 and 1598198904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14798085 + ... + 14798192.

It is an arithmetic number, because the mean of its divisors is an integer number (221972085).

Almost surely, 2^1598198958 is an apocalyptic number.

1598198958 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1598198958 is an abundant number, since it is smaller than the sum of its proper divisors (1953354402).

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

1598198958 is a wasteful number, since it uses less digits than its factorization.

1598198958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29596288 (or 29596282 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 63.

The square root of 1598198958 is about 39977.4806359781. The cubic root of 1598198958 is about 1169.1680739527.

The spelling of 1598198958 in words is "one billion, five hundred ninety-eight million, one hundred ninety-eight thousand, nine hundred fifty-eight".