42563660 has 12 divisors (see below), whose sum is σ = 89383728. Its totient is φ = 17025456.

The previous prime is 42563581. The next prime is 42563671. The reversal of 42563660 is 6636524.

It is a super-3 number, since 3×42563660³ (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064072 + ... + 1064111.

It is an arithmetic number, because the mean of its divisors is an integer number (7448644).

Almost surely, 2^42563660 is an apocalyptic number.

It is an amenable number.

42563660 is an abundant number, since it is smaller than the sum of its proper divisors (46820068).

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

42563660 is a wasteful number, since it uses less digits than its factorization.

42563660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128192 (or 2128190 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 42563660 is about 6524.0830773374. The cubic root of 42563660 is about 349.1507573845.

The spelling of 42563660 in words is "forty-two million, five hundred sixty-three thousand, six hundred sixty".