10018998 has 64 divisors (see below), whose sum is σ = 24675840. Its totient is φ = 2988000.

The previous prime is 10018993. The next prime is 10019021. The reversal of 10018998 is 89981001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10018991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59911 + ... + 60077.

It is an arithmetic number, because the mean of its divisors is an integer number (385560).

Almost surely, 2^10018998 is an apocalyptic number.

10018998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10018998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12337920).

10018998 is an abundant number, since it is smaller than the sum of its proper divisors (14656842).

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

10018998 is a wasteful number, since it uses less digits than its factorization.

10018998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 10018998 is about 3165.2800823940. The cubic root of 10018998 is about 215.5798158632.

Adding to 10018998 its reverse (89981001), we get a palindrome (99999999).

It can be divided in two parts, 1001 and 8998, that added together give a palindrome (9999).

The spelling of 10018998 in words is "ten million, eighteen thousand, nine hundred ninety-eight".