42425321 has 8 divisors (see below), whose sum is σ = 43084800. Its totient is φ = 41770080.

The previous prime is 42425311. The next prime is 42425333. The reversal of 42425321 is 12352424.

It is a happy number.

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 42425321 - 2¹⁰ = 42424297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42425311) 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, 23240 + ... + 24998.

It is an arithmetic number, because the mean of its divisors is an integer number (5385600).

Almost surely, 2^42425321 is an apocalyptic number.

It is an amenable number.

42425321 is a deficient number, since it is larger than the sum of its proper divisors (659479).

42425321 is a wasteful number, since it uses less digits than its factorization.

42425321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119.

The product of its digits is 1920, while the sum is 23.

The square root of 42425321 is about 6513.4722690743. The cubic root of 42425321 is about 348.7720807523.

Adding to 42425321 its reverse (12352424), we get a palindrome (54777745).

The spelling of 42425321 in words is "forty-two million, four hundred twenty-five thousand, three hundred twenty-one".