42801641 has 4 divisors (see below), whose sum is σ = 43797072. Its totient is φ = 41806212.

The previous prime is 42801611. The next prime is 42801653. The reversal of 42801641 is 14610824.

42801641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-42801641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42801641.

It is not an unprimeable number, because it can be changed into a prime (42801601) 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 in 3 ways as a sum of consecutive naturals, for example, 497651 + ... + 497736.

It is an arithmetic number, because the mean of its divisors is an integer number (10949268).

Almost surely, 2^42801641 is an apocalyptic number.

It is an amenable number.

42801641 is a deficient number, since it is larger than the sum of its proper divisors (995431).

42801641 is an equidigital number, since it uses as much as digits as its factorization.

42801641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995430.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 42801641 is about 6542.2963094009. The cubic root of 42801641 is about 349.8002697175.

The spelling of 42801641 in words is "forty-two million, eight hundred one thousand, six hundred forty-one".