42641635 has 8 divisors (see below), whose sum is σ = 51430896. Its totient is φ = 33939360.

The previous prime is 42641603. The next prime is 42641639. The reversal of 42641635 is 53614624.

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

It is not a de Polignac number, because 42641635 - 2⁵ = 42641603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42641597 and 42641606.

It is not an unprimeable number, because it can be changed into a prime (42641639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20661 + ... + 22630.

It is an arithmetic number, because the mean of its divisors is an integer number (6428862).

Almost surely, 2^42641635 is an apocalyptic number.

42641635 is a deficient number, since it is larger than the sum of its proper divisors (8789261).

42641635 is a wasteful number, since it uses less digits than its factorization.

42641635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43493.

The product of its digits is 17280, while the sum is 31.

The square root of 42641635 is about 6530.0562784711. The cubic root of 42641635 is about 349.3638376047.

The spelling of 42641635 in words is "forty-two million, six hundred forty-one thousand, six hundred thirty-five".