4121431998 has 64 divisors (see below), whose sum is σ = 8636129280. Its totient is φ = 1310954400.

The previous prime is 4121431997. The next prime is 4121432039. The reversal of 4121431998 is 8991341214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121431997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21578083 + ... + 21578273.

It is an arithmetic number, because the mean of its divisors is an integer number (134939520).

Almost surely, 2^4121431998 is an apocalyptic number.

4121431998 is an abundant number, since it is smaller than the sum of its proper divisors (4514697282).

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

4121431998 is an equidigital number, since it uses as much as digits as its factorization.

4121431998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 304 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 4121431998 is about 64198.3800262904. The cubic root of 4121431998 is about 1603.3046280199.

The spelling of 4121431998 in words is "four billion, one hundred twenty-one million, four hundred thirty-one thousand, nine hundred ninety-eight".