100118840 has 64 divisors (see below), whose sum is σ = 234178560. Its totient is φ = 38482560.

The previous prime is 100118827. The next prime is 100118849. The reversal of 100118840 is 48811001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100118849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325967 + ... + 326273.

It is an arithmetic number, because the mean of its divisors is an integer number (3659040).

Almost surely, 2^100118840 is an apocalyptic number.

100118840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100118840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117089280).

100118840 is an abundant number, since it is smaller than the sum of its proper divisors (134059720).

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

100118840 is a wasteful number, since it uses less digits than its factorization.

100118840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 100118840 is about 10005.9402356800. The cubic root of 100118840 is about 464.3426793784.

Adding to 100118840 its reverse (48811001), we get a palindrome (148929841).

The spelling of 100118840 in words is "one hundred million, one hundred eighteen thousand, eight hundred forty".