100040208 has 40 divisors (see below), whose sum is σ = 258801888. Its totient is φ = 33299712.

The previous prime is 100040201. The next prime is 100040233. The reversal of 100040208 is 802040001.

It is not an unprimeable number, because it can be changed into a prime (100040201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56391 + ... + 58137.

Almost surely, 2^100040208 is an apocalyptic number.

It is an amenable number.

100040208 is an abundant number, since it is smaller than the sum of its proper divisors (158761680).

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

100040208 is a wasteful number, since it uses less digits than its factorization.

100040208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951 (or 2945 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 100040208 is about 10002.0101979552. The cubic root of 100040208 is about 464.2210846933.

Adding to 100040208 its reverse (802040001), we get a palindrome (902080209).

The spelling of 100040208 in words is "one hundred million, forty thousand, two hundred eight".