42465641 has 4 divisors (see below), whose sum is σ = 42515712. Its totient is φ = 42415572.

The previous prime is 42465617. The next prime is 42465653. The reversal of 42465641 is 14656424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42465641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42465598 and 42465607.

It is not an unprimeable number, because it can be changed into a prime (42465671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23741 + ... + 25466.

It is an arithmetic number, because the mean of its divisors is an integer number (10628928).

Almost surely, 2^42465641 is an apocalyptic number.

It is an amenable number.

42465641 is a deficient number, since it is larger than the sum of its proper divisors (50071).

42465641 is an equidigital number, since it uses as much as digits as its factorization.

42465641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50070.

The product of its digits is 23040, while the sum is 32.

The square root of 42465641 is about 6516.5666573741. The cubic root of 42465641 is about 348.8825339552.

The spelling of 42465641 in words is "forty-two million, four hundred sixty-five thousand, six hundred forty-one".