42643876 has 12 divisors (see below), whose sum is σ = 81411120. Its totient is φ = 19383560.

The previous prime is 42643859. The next prime is 42643889. The reversal of 42643876 is 67834624.

It is a happy number.

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, 484546 + ... + 484633.

It is an arithmetic number, because the mean of its divisors is an integer number (6784260).

Almost surely, 2^42643876 is an apocalyptic number.

It is an amenable number.

42643876 is a deficient number, since it is larger than the sum of its proper divisors (38767244).

42643876 is a wasteful number, since it uses less digits than its factorization.

42643876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969194 (or 969192 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 42643876 is about 6530.2278673872. The cubic root of 42643876 is about 349.3699576847.

It can be divided in two parts, 4 and 2643876, that multiplied together give a square (10575504 = 3252²).

The spelling of 42643876 in words is "forty-two million, six hundred forty-three thousand, eight hundred seventy-six".