42661635 has 8 divisors (see below), whose sum is σ = 68258640. Its totient is φ = 22752864.

The previous prime is 42661621. The next prime is 42661643. The reversal of 42661635 is 53616624.

42661635 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42661635 - 2¹¹ = 42659587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42661596 and 42661605.

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 in 7 ways as a sum of consecutive naturals, for example, 1422040 + ... + 1422069.

It is an arithmetic number, because the mean of its divisors is an integer number (8532330).

Almost surely, 2^42661635 is an apocalyptic number.

42661635 is a deficient number, since it is larger than the sum of its proper divisors (25597005).

42661635 is a wasteful number, since it uses less digits than its factorization.

42661635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844117.

The product of its digits is 25920, while the sum is 33.

The square root of 42661635 is about 6531.5874793193. The cubic root of 42661635 is about 349.4184492117.

The spelling of 42661635 in words is "forty-two million, six hundred sixty-one thousand, six hundred thirty-five".