42632669 has 2 divisors, whose sum is σ = 42632670. Its totient is φ = 42632668.

The previous prime is 42632663. The next prime is 42632671. The reversal of 42632669 is 96623624.

42632669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36457444 + 6175225 = 6038^2 + 2485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42632669 is a prime.

It is a super-2 number, since 2×42632669² = 3635088932127122, which contains 22 as substring.

Together with 42632671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42632663) by changing a digit.

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, 21316334 + 21316335.

It is an arithmetic number, because the mean of its divisors is an integer number (21316335).

Almost surely, 2^42632669 is an apocalyptic number.

It is an amenable number.

42632669 is a deficient number, since it is larger than the sum of its proper divisors (1).

42632669 is an equidigital number, since it uses as much as digits as its factorization.

42632669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 38.

The square root of 42632669 is about 6529.3697245599. The cubic root of 42632669 is about 349.3393496777.

The spelling of 42632669 in words is "forty-two million, six hundred thirty-two thousand, six hundred sixty-nine".