320042634 has 8 divisors (see below), whose sum is σ = 640085280. Its totient is φ = 106680876.

The previous prime is 320042623. The next prime is 320042651. The reversal of 320042634 is 436240023.

It is a happy number.

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

320042634 is an admirable number.

It is a Curzon number.

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, 26670214 + ... + 26670225.

It is an arithmetic number, because the mean of its divisors is an integer number (80010660).

Almost surely, 2^320042634 is an apocalyptic number.

320042634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320042634 is a wasteful number, since it uses less digits than its factorization.

320042634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53340444.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 320042634 is about 17889.7354368364. The cubic root of 320042634 is about 684.0207536195.

Adding to 320042634 its reverse (436240023), we get a palindrome (756282657).

The spelling of 320042634 in words is "three hundred twenty million, forty-two thousand, six hundred thirty-four".