328550436 has 18 divisors (see below), whose sum is σ = 830502582. Its totient is φ = 109516800.

The previous prime is 328550419. The next prime is 328550447. The reversal of 328550436 is 634055823.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 243172836 + 85377600 = 15594^2 + 9240^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 9126401 = 328550436 / (3 + 2 + 8 + 5 + 5 + 0 + 4 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 328550436.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4563165 + ... + 4563236.

Almost surely, 2^328550436 is an apocalyptic number.

328550436 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

328550436 is an abundant number, since it is smaller than the sum of its proper divisors (501952146).

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

328550436 is a wasteful number, since it uses less digits than its factorization.

328550436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9126411 (or 9126406 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 328550436 is about 18125.9602780101. The cubic root of 328550436 is about 690.0290094924.

The spelling of 328550436 in words is "three hundred twenty-eight million, five hundred fifty thousand, four hundred thirty-six".