320030007642 has 64 divisors (see below), whose sum is σ = 730896791040. Its totient is φ = 103722752448.

The previous prime is 320030007629. The next prime is 320030007719. The reversal of 320030007642 is 246700030023.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2917168 + ... + 3024884.

It is an arithmetic number, because the mean of its divisors is an integer number (11420262360).

Almost surely, 2^320030007642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320030007642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365448395520).

320030007642 is an abundant number, since it is smaller than the sum of its proper divisors (410866783398).

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

320030007642 is a wasteful number, since it uses less digits than its factorization.

320030007642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109252 (or 109246 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

Adding to 320030007642 its reverse (246700030023), we get a palindrome (566730037665).

The spelling of 320030007642 in words is "three hundred twenty billion, thirty million, seven thousand, six hundred forty-two".