100242408 has 64 divisors (see below), whose sum is σ = 287170560. Its totient is φ = 28564416.

The previous prime is 100242397. The next prime is 100242409. The reversal of 100242408 is 804242001.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (100242409) 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, 101485 + ... + 102467.

It is an arithmetic number, because the mean of its divisors is an integer number (4487040).

Almost surely, 2^100242408 is an apocalyptic number.

It is an amenable number.

100242408 is an abundant number, since it is smaller than the sum of its proper divisors (186928152).

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

100242408 is a wasteful number, since it uses less digits than its factorization.

100242408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 100242408 is about 10012.1130636844. The cubic root of 100242408 is about 464.5336334714.

Adding to 100242408 its reverse (804242001), we get a palindrome (904484409).

The spelling of 100242408 in words is "one hundred million, two hundred forty-two thousand, four hundred eight".