10000399998 has 16 divisors (see below), whose sum is σ = 21053473920. Its totient is φ = 3158021016.

The previous prime is 10000399943. The next prime is 10000400009. The reversal of 10000399998 is 89999300001.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43861290 + ... + 43861517.

It is an arithmetic number, because the mean of its divisors is an integer number (1315842120).

Almost surely, 2^10000399998 is an apocalyptic number.

10000399998 is an abundant number, since it is smaller than the sum of its proper divisors (11053073922).

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

10000399998 is a wasteful number, since it uses less digits than its factorization.

10000399998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87722831.

The product of its (nonzero) digits is 157464, while the sum is 48.

Adding to 10000399998 its reverse (89999300001), we get a palindrome (99999699999).

The spelling of 10000399998 in words is "ten billion, three hundred ninety-nine thousand, nine hundred ninety-eight".