328420156 has 24 divisors (see below), whose sum is σ = 586141920. Its totient is φ = 160977600.

The previous prime is 328420153. The next prime is 328420163. The reversal of 328420156 is 651024823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328420153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48210 + ... + 54598.

It is an arithmetic number, because the mean of its divisors is an integer number (24422580).

Almost surely, 2^328420156 is an apocalyptic number.

It is an amenable number.

328420156 is a deficient number, since it is larger than the sum of its proper divisors (257721764).

328420156 is a wasteful number, since it uses less digits than its factorization.

328420156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6645 (or 6643 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 328420156 is about 18122.3661810482. The cubic root of 328420156 is about 689.9377917732.

Adding to 328420156 its reverse (651024823), we get a palindrome (979444979).

The spelling of 328420156 in words is "three hundred twenty-eight million, four hundred twenty thousand, one hundred fifty-six".