42208100 has 36 divisors (see below), whose sum is σ = 99920688. Its totient is φ = 15348000.

The previous prime is 42208097. The next prime is 42208121. The reversal of 42208100 is 180224.

It is a super-2 number, since 2×42208100² = 3563047411220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18086 + ... + 20285.

Almost surely, 2^42208100 is an apocalyptic number.

It is an amenable number.

42208100 is an abundant number, since it is smaller than the sum of its proper divisors (57712588).

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

42208100 is a wasteful number, since it uses less digits than its factorization.

42208100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38396 (or 38389 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 42208100 is about 6496.7761235862. The cubic root of 42208100 is about 348.1758150668.

Adding to 42208100 its reverse (180224), we get a palindrome (42388324).

The spelling of 42208100 in words is "forty-two million, two hundred eight thousand, one hundred".