320499242 has 16 divisors (see below), whose sum is σ = 568373760. Its totient is φ = 132620208.

The previous prime is 320499233. The next prime is 320499259. The reversal of 320499242 is 242994023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394298 + ... + 395109.

It is an arithmetic number, because the mean of its divisors is an integer number (35523360).

Almost surely, 2^320499242 is an apocalyptic number.

320499242 is a deficient number, since it is larger than the sum of its proper divisors (247874518).

320499242 is a wasteful number, since it uses less digits than its factorization.

320499242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789445.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 320499242 is about 17902.4926197443. The cubic root of 320499242 is about 684.3458987702.

The spelling of 320499242 in words is "three hundred twenty million, four hundred ninety-nine thousand, two hundred forty-two".