42208236 has 96 divisors (see below), whose sum is σ = 129167360. Its totient is φ = 11664000.

The previous prime is 42208219. The next prime is 42208237. The reversal of 42208236 is 63280224.

42208236 is a `hidden beast` number, since 422 + 0 + 8 + 236 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42208237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22536 + ... + 24336.

Almost surely, 2^42208236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42208236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64583680).

42208236 is an abundant number, since it is smaller than the sum of its proper divisors (86959124).

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

42208236 is a wasteful number, since it uses less digits than its factorization.

42208236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852 (or 1844 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 42208236 is about 6496.7865903075. The cubic root of 42208236 is about 348.1761890223.

The spelling of 42208236 in words is "forty-two million, two hundred eight thousand, two hundred thirty-six".