328424187 has 16 divisors (see below), whose sum is σ = 538952960. Its totient is φ = 173234592.

The previous prime is 328424179. The next prime is 328424189. The reversal of 328424187 is 781424823.

It is not a de Polignac number, because 328424187 - 2³ = 328424179 is a prime.

It is a super-2 number, since 2×328424187² = 215724893213221938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (328424189) 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, 601237 + ... + 601782.

It is an arithmetic number, because the mean of its divisors is an integer number (33684560).

Almost surely, 2^328424187 is an apocalyptic number.

328424187 is a deficient number, since it is larger than the sum of its proper divisors (210528773).

328424187 is a wasteful number, since it uses less digits than its factorization.

328424187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203042.

The product of its digits is 86016, while the sum is 39.

The square root of 328424187 is about 18122.4773968682. The cubic root of 328424187 is about 689.9406145068.

The spelling of 328424187 in words is "three hundred twenty-eight million, four hundred twenty-four thousand, one hundred eighty-seven".