3998118852 has 504 divisors, whose sum is σ = 13889319360. Its totient is φ = 982575360.

The previous prime is 3998118851. The next prime is 3998118907. The reversal of 3998118852 is 2588118993.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (1244160) is a multiple of the sum of its prime factors (135).

It is not an unprimeable number, because it can be changed into a prime (3998118851) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 65542902 + ... + 65542962.

Almost surely, 2^3998118852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3998118852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6944659680).

3998118852 is an abundant number, since it is smaller than the sum of its proper divisors (9891200508).

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

3998118852 is a wasteful number, since it uses less digits than its factorization.

3998118852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 105 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 3998118852 is about 63230.6796737154. The cubic root of 3998118852 is about 1587.1521682557.

The spelling of 3998118852 in words is "three billion, nine hundred ninety-eight million, one hundred eighteen thousand, eight hundred fifty-two".