320425442 has 8 divisors (see below), whose sum is σ = 481099500. Its totient is φ = 160058944.

The previous prime is 320425433. The next prime is 320425451. The reversal of 320425442 is 244524023.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (320425433) and next prime (320425451).

It can be written as a sum of positive squares in 2 ways, for example, as 320087881 + 337561 = 17891^2 + 581^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74267 + ... + 78462.

Almost surely, 2^320425442 is an apocalyptic number.

320425442 is a deficient number, since it is larger than the sum of its proper divisors (160674058).

320425442 is a wasteful number, since it uses less digits than its factorization.

320425442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153780.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 320425442 is about 17900.4313355852. The cubic root of 320425442 is about 684.2933675962.

Adding to 320425442 its reverse (244524023), we get a palindrome (564949465).

The spelling of 320425442 in words is "three hundred twenty million, four hundred twenty-five thousand, four hundred forty-two".