10118990 has 48 divisors (see below), whose sum is σ = 21496752. Its totient is φ = 3419136.

The previous prime is 10118981. The next prime is 10118993. The reversal of 10118990 is 9981101.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10118993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52334 + ... + 52526.

It is an arithmetic number, because the mean of its divisors is an integer number (447849).

Almost surely, 2^10118990 is an apocalyptic number.

10118990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10118990 is an abundant number, since it is smaller than the sum of its proper divisors (11377762).

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

10118990 is a wasteful number, since it uses less digits than its factorization.

10118990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 10118990 is about 3181.0359947665. The cubic root of 10118990 is about 216.2946225312.

It can be divided in two parts, 1011 and 8990, that added together give a palindrome (10001).

The spelling of 10118990 in words is "ten million, one hundred eighteen thousand, nine hundred ninety".