100018040 has 64 divisors (see below), whose sum is σ = 231012000. Its totient is φ = 38960640.

The previous prime is 100018031. The next prime is 100018057. The reversal of 100018040 is 40810001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436646 + ... + 436874.

Almost surely, 2^100018040 is an apocalyptic number.

100018040 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 100018040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115506000).

100018040 is an abundant number, since it is smaller than the sum of its proper divisors (130993960).

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

100018040 is a wasteful number, since it uses less digits than its factorization.

100018040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 100018040 is about 10000.9019593235. The cubic root of 100018040 is about 464.1867931039.

Adding to 100018040 its reverse (40810001), we get a palindrome (140828041).

The spelling of 100018040 in words is "one hundred million, eighteen thousand, forty".