2478889998 has 48 divisors (see below), whose sum is σ = 6035571360. Its totient is φ = 729571392.

The previous prime is 2478889993. The next prime is 2478890017. The reversal of 2478889998 is 8999888742.

It is a super-2 number, since 2×2478889998² = 12289791244368880008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478889993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224913 + ... + 235676.

It is an arithmetic number, because the mean of its divisors is an integer number (125741070).

Almost surely, 2^2478889998 is an apocalyptic number.

2478889998 is an abundant number, since it is smaller than the sum of its proper divisors (3556681362).

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

2478889998 is a wasteful number, since it uses less digits than its factorization.

2478889998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460633 (or 460630 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 72.

The square root of 2478889998 is about 49788.4524563678. The cubic root of 2478889998 is about 1353.3779145341.

The spelling of 2478889998 in words is "two billion, four hundred seventy-eight million, eight hundred eighty-nine thousand, nine hundred ninety-eight".