42215308 has 12 divisors (see below), whose sum is σ = 74459392. Its totient is φ = 20941200.

The previous prime is 42215297. The next prime is 42215311. The reversal of 42215308 is 80351224.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41043 + ... + 42058.

Almost surely, 2^42215308 is an apocalyptic number.

It is an amenable number.

42215308 is a deficient number, since it is larger than the sum of its proper divisors (32244084).

42215308 is a wasteful number, since it uses less digits than its factorization.

42215308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83232 (or 83230 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 42215308 is about 6497.3308365820. The cubic root of 42215308 is about 348.1956336042.

The spelling of 42215308 in words is "forty-two million, two hundred fifteen thousand, three hundred eight".