328137780 has 48 divisors (see below), whose sum is σ = 958737024. Its totient is φ = 83698560.

The previous prime is 328137769. The next prime is 328137781. The reversal of 328137780 is 87731823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328137781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117511 + ... + 120270.

It is an arithmetic number, because the mean of its divisors is an integer number (19973688).

Almost surely, 2^328137780 is an apocalyptic number.

328137780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

328137780 is an abundant number, since it is smaller than the sum of its proper divisors (630599244).

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

328137780 is a wasteful number, since it uses less digits than its factorization.

328137780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237816 (or 237814 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 328137780 is about 18114.5736908159. The cubic root of 328137780 is about 689.7399986586.

The spelling of 328137780 in words is "three hundred twenty-eight million, one hundred thirty-seven thousand, seven hundred eighty".