1541989998 has 24 divisors (see below), whose sum is σ = 3537507168. Its totient is φ = 483761472.

The previous prime is 1541989997. The next prime is 1541990017. The reversal of 1541989998 is 8999891451.

1541989998 is a `hidden beast` number, since 1 + 541 + 9 + 89 + 9 + 9 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1541989997) 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 11 ways as a sum of consecutive naturals, for example, 2519286 + ... + 2519897.

It is an arithmetic number, because the mean of its divisors is an integer number (147396132).

Almost surely, 2^1541989998 is an apocalyptic number.

1541989998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1541989998 is an abundant number, since it is smaller than the sum of its proper divisors (1995517170).

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

1541989998 is a wasteful number, since it uses less digits than its factorization.

1541989998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5039208 (or 5039205 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 63.

The square root of 1541989998 is about 39268.1804773280. The cubic root of 1541989998 is about 1155.2975496954.

The spelling of 1541989998 in words is "one billion, five hundred forty-one million, nine hundred eighty-nine thousand, nine hundred ninety-eight".