42453321 has 8 divisors (see below), whose sum is σ = 56650944. Its totient is φ = 28278960.

The previous prime is 42453293. The next prime is 42453337. The reversal of 42453321 is 12335424.

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

It is not a de Polignac number, because 42453321 - 2⁵ = 42453289 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42453291 and 42453300.

It is not an unprimeable number, because it can be changed into a prime (42453121) 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, 981 + ... + 9266.

It is an arithmetic number, because the mean of its divisors is an integer number (7081368).

Almost surely, 2^42453321 is an apocalyptic number.

It is an amenable number.

42453321 is a deficient number, since it is larger than the sum of its proper divisors (14197623).

42453321 is a wasteful number, since it uses less digits than its factorization.

42453321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11631.

The product of its digits is 2880, while the sum is 24.

The square root of 42453321 is about 6515.6213057543. The cubic root of 42453321 is about 348.8487917859.

Adding to 42453321 its reverse (12335424), we get a palindrome (54788745).

The spelling of 42453321 in words is "forty-two million, four hundred fifty-three thousand, three hundred twenty-one".