320332406 has 8 divisors (see below), whose sum is σ = 480884040. Its totient is φ = 160037728.

The previous prime is 320332379. The next prime is 320332451. The reversal of 320332406 is 604233023.

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

It is a super-2 number, since 2×320332406² = 205225700667497672, which contains 22 as substring.

It is a congruent 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, 61091 + ... + 66126.

It is an arithmetic number, because the mean of its divisors is an integer number (60110505).

Almost surely, 2^320332406 is an apocalyptic number.

320332406 is a deficient number, since it is larger than the sum of its proper divisors (160551634).

320332406 is a wasteful number, since it uses less digits than its factorization.

320332406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128478.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 320332406 is about 17897.8324385943. The cubic root of 320332406 is about 684.2271326556.

Adding to 320332406 its reverse (604233023), we get a palindrome (924565429).

The spelling of 320332406 in words is "three hundred twenty million, three hundred thirty-two thousand, four hundred six".