42642632 has 16 divisors (see below), whose sum is σ = 80197260. Its totient is φ = 21256704.

The previous prime is 42642629. The next prime is 42642637. The reversal of 42642632 is 23624624.

It can be written as a sum of positive squares in 2 ways, for example, as 42172036 + 470596 = 6494^2 + 686^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42642595 and 42642604.

It is not an unprimeable number, because it can be changed into a prime (42642637) by changing a digit.

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, 5213 + ... + 10604.

Almost surely, 2^42642632 is an apocalyptic number.

It is an amenable number.

42642632 is a deficient number, since it is larger than the sum of its proper divisors (37554628).

42642632 is a wasteful number, since it uses less digits than its factorization.

42642632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16160 (or 16156 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 42642632 is about 6530.1326173363. The cubic root of 42642632 is about 349.3665603977.

The spelling of 42642632 in words is "forty-two million, six hundred forty-two thousand, six hundred thirty-two".