1998710802 has 160 divisors (see below), whose sum is σ = 5108995584. Its totient is φ = 578534400.

The previous prime is 1998710801. The next prime is 1998710803. The reversal of 1998710802 is 2080178991.

It is an interprime number because it is at equal distance from previous prime (1998710801) and next prime (1998710803).

It is not an unprimeable number, because it can be changed into a prime (1998710801) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5358288 + ... + 5358660.

Almost surely, 2^1998710802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1998710802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2554497792).

1998710802 is an abundant number, since it is smaller than the sum of its proper divisors (3110284782).

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

1998710802 is a wasteful number, since it uses less digits than its factorization.

1998710802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 1998710802 is about 44706.9435546650. The cubic root of 1998710802 is about 1259.6502770903.

The spelling of 1998710802 in words is "one billion, nine hundred ninety-eight million, seven hundred ten thousand, eight hundred two".