1000909998 has 48 divisors (see below), whose sum is σ = 2468658816. Its totient is φ = 290117520.

The previous prime is 1000909997. The next prime is 1000910023. The reversal of 1000909998 is 8999090001.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000909997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105340 + ... + 114447.

It is an arithmetic number, because the mean of its divisors is an integer number (51430392).

Almost surely, 2^1000909998 is an apocalyptic number.

1000909998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1000909998 is an abundant number, since it is smaller than the sum of its proper divisors (1467748818).

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

1000909998 is a wasteful number, since it uses less digits than its factorization.

1000909998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219829 (or 219826 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The square root of 1000909998 is about 31637.1616615650. The cubic root of 1000909998 is about 1000.3032407024.

Adding to 1000909998 its reverse (8999090001), we get a palindrome (9999999999).

The spelling of 1000909998 in words is "one billion, nine hundred nine thousand, nine hundred ninety-eight".