42005316 has 12 divisors (see below), whose sum is σ = 98012432. Its totient is φ = 14001768.

The previous prime is 42005303. The next prime is 42005339. The reversal of 42005316 is 61350024.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 42005292 and 42005301.

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, 1750210 + ... + 1750233.

Almost surely, 2^42005316 is an apocalyptic number.

It is an amenable number.

42005316 is an abundant number, since it is smaller than the sum of its proper divisors (56007116).

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

42005316 is a wasteful number, since it uses less digits than its factorization.

42005316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500450 (or 3500448 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 42005316 is about 6481.1508237349. The cubic root of 42005316 is about 347.6173293919.

The spelling of 42005316 in words is "forty-two million, five thousand, three hundred sixteen".