424622321 has 8 divisors (see below), whose sum is σ = 442474920. Its totient is φ = 406983808.

The previous prime is 424622309. The next prime is 424622329. The reversal of 424622321 is 123226424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 119596096 + 305026225 = 10936^2 + 17465^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424622321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424622329) 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, 49466 + ... + 57411.

It is an arithmetic number, because the mean of its divisors is an integer number (55309365).

Almost surely, 2^424622321 is an apocalyptic number.

It is an amenable number.

424622321 is a deficient number, since it is larger than the sum of its proper divisors (17852599).

424622321 is a wasteful number, since it uses less digits than its factorization.

424622321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107043.

The product of its digits is 4608, while the sum is 26.

The square root of 424622321 is about 20606.3660309138. The cubic root of 424622321 is about 751.6245207765.

Adding to 424622321 its reverse (123226424), we get a palindrome (547848745).

The spelling of 424622321 in words is "four hundred twenty-four million, six hundred twenty-two thousand, three hundred twenty-one".