42660630 has 96 divisors (see below), whose sum is σ = 119081664. Its totient is φ = 10568448.

The previous prime is 42660571. The next prime is 42660641. The reversal of 42660630 is 3606624.

42660630 is a `hidden beast` number, since 4 + 26 + 6 + 0 + 630 = 666.

42660630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42660594 and 42660603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76312 + ... + 76868.

It is an arithmetic number, because the mean of its divisors is an integer number (1240434).

Almost surely, 2^42660630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42660630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59540832).

42660630 is an abundant number, since it is smaller than the sum of its proper divisors (76421034).

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

42660630 is a wasteful number, since it uses less digits than its factorization.

42660630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 42660630 is about 6531.5105450424. The cubic root of 42660630 is about 349.4157053858.

The spelling of 42660630 in words is "forty-two million, six hundred sixty thousand, six hundred thirty".