42211641 has 4 divisors (see below), whose sum is σ = 56282192. Its totient is φ = 28141092.

The previous prime is 42211633. The next prime is 42211643. The reversal of 42211641 is 14611224.

It is a happy number.

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 not a de Polignac number, because 42211641 - 2³ = 42211633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42211643) 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, 7035271 + ... + 7035276.

It is an arithmetic number, because the mean of its divisors is an integer number (14070548).

Almost surely, 2^42211641 is an apocalyptic number.

It is an amenable number.

42211641 is a deficient number, since it is larger than the sum of its proper divisors (14070551).

42211641 is a wasteful number, since it uses less digits than its factorization.

42211641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14070550.

The product of its digits is 384, while the sum is 21.

The square root of 42211641 is about 6497.0486376508. The cubic root of 42211641 is about 348.1855513977.

Adding to 42211641 its reverse (14611224), we get a palindrome (56822865).

The spelling of 42211641 in words is "forty-two million, two hundred eleven thousand, six hundred forty-one".