42305208 has 128 divisors (see below), whose sum is σ = 122135040. Its totient is φ = 12096000.

The previous prime is 42305167. The next prime is 42305209. The reversal of 42305208 is 80250324.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42305209) 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, 595813 + ... + 595883.

It is an arithmetic number, because the mean of its divisors is an integer number (954180).

Almost surely, 2^42305208 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 42305208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61067520).

42305208 is an abundant number, since it is smaller than the sum of its proper divisors (79829832).

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

42305208 is a wasteful number, since it uses less digits than its factorization.

42305208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 42305208 is about 6504.2453828250. The cubic root of 42305208 is about 348.4426261038.

Subtracting 42305208 from its reverse (80250324), we obtain a triangular number (37945116 = T₈₇₁₁).

The spelling of 42305208 in words is "forty-two million, three hundred five thousand, two hundred eight".