42228632 has 8 divisors (see below), whose sum is σ = 79178700. Its totient is φ = 21114312.

The previous prime is 42228587. The next prime is 42228679. The reversal of 42228632 is 23682224.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 42228595 and 42228604.

It is a congruent 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 as a sum of consecutive naturals, namely, 2639282 + ... + 2639297.

Almost surely, 2^42228632 is an apocalyptic number.

It is an amenable number.

42228632 is a deficient number, since it is larger than the sum of its proper divisors (36950068).

42228632 is a wasteful number, since it uses less digits than its factorization.

42228632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5278585 (or 5278581 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 42228632 is about 6498.3560998148. The cubic root of 42228632 is about 348.2322622652.

The spelling of 42228632 in words is "forty-two million, two hundred twenty-eight thousand, six hundred thirty-two".