100019408 has 20 divisors (see below), whose sum is σ = 194981568. Its totient is φ = 49701600.

The previous prime is 100019407. The next prime is 100019429. The reversal of 100019408 is 804910001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100019407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16568 + ... + 21783.

Almost surely, 2^100019408 is an apocalyptic number.

It is an amenable number.

100019408 is a deficient number, since it is larger than the sum of its proper divisors (94962160).

100019408 is a wasteful number, since it uses less digits than its factorization.

100019408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38522 (or 38516 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 100019408 is about 10000.9703529208. The cubic root of 100019408 is about 464.1889094042.

Adding to 100019408 its reverse (804910001), we get a palindrome (904929409).

The spelling of 100019408 in words is "one hundred million, nineteen thousand, four hundred eight".