320514642 has 72 divisors (see below), whose sum is σ = 820392768. Its totient is φ = 88588080.

The previous prime is 320514587. The next prime is 320514653. The reversal of 320514642 is 246415023.

320514642 is a `hidden beast` number, since 3 + 2 + 0 + 5 + 14 + 642 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 119763 + ... + 122409.

It is an arithmetic number, because the mean of its divisors is an integer number (11394344).

Almost surely, 2^320514642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320514642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410196384).

320514642 is an abundant number, since it is smaller than the sum of its proper divisors (499878126).

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

320514642 is a wasteful number, since it uses less digits than its factorization.

320514642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724 (or 2690 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 320514642 is about 17902.9227222820. The cubic root of 320514642 is about 684.3568595429.

Adding to 320514642 its reverse (246415023), we get a palindrome (566929665).

The spelling of 320514642 in words is "three hundred twenty million, five hundred fourteen thousand, six hundred forty-two".