42241321 has 8 divisors (see below), whose sum is σ = 42904584. Its totient is φ = 41583360.

The previous prime is 42241301. The next prime is 42241337. The reversal of 42241321 is 12314224.

It can be written as a sum of positive squares in 4 ways, for example, as 6969600 + 35271721 = 2640^2 + 5939^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42241321 - 2¹¹ = 42239273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42241301) 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, 16551 + ... + 18931.

It is an arithmetic number, because the mean of its divisors is an integer number (5363073).

Almost surely, 2^42241321 is an apocalyptic number.

It is an amenable number.

42241321 is a deficient number, since it is larger than the sum of its proper divisors (663263).

42241321 is a wasteful number, since it uses less digits than its factorization.

42241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651.

The product of its digits is 384, while the sum is 19.

The square root of 42241321 is about 6499.3323503265. The cubic root of 42241321 is about 348.2671381023.

Adding to 42241321 its reverse (12314224), we get a palindrome (54555545).

The spelling of 42241321 in words is "forty-two million, two hundred forty-one thousand, three hundred twenty-one".