42104900 has 18 divisors (see below), whose sum is σ = 91367850. Its totient is φ = 16841920.

The previous prime is 42104863. The next prime is 42104911. The reversal of 42104900 is 940124.

It can be written as a sum of positive squares in 3 ways, for example, as 8904256 + 33200644 = 2984^2 + 5762^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210425 + ... + 210624.

Almost surely, 2^42104900 is an apocalyptic number.

It is an amenable number.

42104900 is an abundant number, since it is smaller than the sum of its proper divisors (49262950).

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

42104900 is a wasteful number, since it uses less digits than its factorization.

42104900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421063 (or 421056 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 42104900 is about 6488.8288619750. The cubic root of 42104900 is about 347.8918169032.

The spelling of 42104900 in words is "forty-two million, one hundred four thousand, nine hundred".