42066530 has 32 divisors (see below), whose sum is σ = 85458240. Its totient is φ = 14768320.

The previous prime is 42066527. The next prime is 42066569. The reversal of 42066530 is 3566024.

It is a self number, because there is not a number n which added to its sum of digits gives 42066530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3404 + ... + 9783.

It is an arithmetic number, because the mean of its divisors is an integer number (2670570).

Almost surely, 2^42066530 is an apocalyptic number.

42066530 is an abundant number, since it is smaller than the sum of its proper divisors (43391710).

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

42066530 is a wasteful number, since it uses less digits than its factorization.

42066530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13234.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 42066530 is about 6485.8715682628. The cubic root of 42066530 is about 347.7861073863.

The spelling of 42066530 in words is "forty-two million, sixty-six thousand, five hundred thirty".