328731600 has 60 divisors (see below), whose sum is σ = 1053040736. Its totient is φ = 87661440.

The previous prime is 328731553. The next prime is 328731619. The reversal of 328731600 is 6137823.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135772 + ... + 138171.

Almost surely, 2^328731600 is an apocalyptic number.

328731600 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

328731600 is an abundant number, since it is smaller than the sum of its proper divisors (724309136).

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

328731600 is a wasteful number, since it uses less digits than its factorization.

328731600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273964 (or 273953 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 328731600 is about 18130.9569521302. The cubic root of 328731600 is about 690.1558144231.

The spelling of 328731600 in words is "three hundred twenty-eight million, seven hundred thirty-one thousand, six hundred".