100104040 has 32 divisors (see below), whose sum is σ = 225688680. Its totient is φ = 39960832.

The previous prime is 100104013. The next prime is 100104089. The reversal of 100104040 is 40401001.

It can be written as a sum of positive squares in 4 ways, for example, as 88774084 + 11329956 = 9422^2 + 3366^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20034 + ... + 24526.

Almost surely, 2^100104040 is an apocalyptic number.

100104040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100104040 is an abundant number, since it is smaller than the sum of its proper divisors (125584640).

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

100104040 is a wasteful number, since it uses less digits than its factorization.

100104040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061 (or 5057 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 100104040 is about 10005.2006476632. The cubic root of 100104040 is about 464.3197978698.

Adding to 100104040 its reverse (40401001), we get a palindrome (140505041).

The spelling of 100104040 in words is "one hundred million, one hundred four thousand, forty".