42811232 has 12 divisors (see below), whose sum is σ = 84284676. Its totient is φ = 21405600.

The previous prime is 42811213. The next prime is 42811243. The reversal of 42811232 is 23211824.

It is a happy number.

42811232 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 = 42811198 and 42811207.

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 as a sum of consecutive naturals, namely, 668894 + ... + 668957.

It is an arithmetic number, because the mean of its divisors is an integer number (7023723).

Almost surely, 2^42811232 is an apocalyptic number.

It is an amenable number.

42811232 is a deficient number, since it is larger than the sum of its proper divisors (41473444).

42811232 is a wasteful number, since it uses less digits than its factorization.

42811232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337861 (or 1337853 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 42811232 is about 6543.0292678545. The cubic root of 42811232 is about 349.8263955369.

The spelling of 42811232 in words is "forty-two million, eight hundred eleven thousand, two hundred thirty-two".