42305808 has 80 divisors (see below), whose sum is σ = 113484800. Its totient is φ = 13571712.

The previous prime is 42305807. The next prime is 42305827. The reversal of 42305808 is 80850324.

It is not an unprimeable number, because it can be changed into a prime (42305803) 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, 212493 + ... + 212691.

It is an arithmetic number, because the mean of its divisors is an integer number (1418560).

Almost surely, 2^42305808 is an apocalyptic number.

42305808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42305808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56742400).

42305808 is an abundant number, since it is smaller than the sum of its proper divisors (71178992).

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

42305808 is a wasteful number, since it uses less digits than its factorization.

42305808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 42305808 is about 6504.2915063825. The cubic root of 42305808 is about 348.4442733761. Note that the first 3 decimals are identical.

The spelling of 42305808 in words is "forty-two million, three hundred five thousand, eight hundred eight".