42330945 has 16 divisors (see below), whose sum is σ = 68227200. Its totient is φ = 22410624.

The previous prime is 42330943. The next prime is 42330961. The reversal of 42330945 is 54903324.

It is not a de Polignac number, because 42330945 - 2¹ = 42330943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42330943) 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, 8245 + ... + 12354.

It is an arithmetic number, because the mean of its divisors is an integer number (4264200).

Almost surely, 2^42330945 is an apocalyptic number.

It is an amenable number.

42330945 is a deficient number, since it is larger than the sum of its proper divisors (25896255).

42330945 is a wasteful number, since it uses less digits than its factorization.

42330945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20744.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 42330945 is about 6506.2235590241. The cubic root of 42330945 is about 348.5132718574.

The spelling of 42330945 in words is "forty-two million, three hundred thirty thousand, nine hundred forty-five".