328811390 has 32 divisors (see below), whose sum is σ = 613176480. Its totient is φ = 126860800.

The previous prime is 328811383. The next prime is 328811393. The reversal of 328811390 is 93118823.

It is a self number, because there is not a number n which added to its sum of digits gives 328811390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328811393) 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, 31985 + ... + 40995.

It is an arithmetic number, because the mean of its divisors is an integer number (19161765).

Almost surely, 2^328811390 is an apocalyptic number.

328811390 is a deficient number, since it is larger than the sum of its proper divisors (284365090).

328811390 is a wasteful number, since it uses less digits than its factorization.

328811390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9148.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 328811390 is about 18133.1571988995. The cubic root of 328811390 is about 690.2116482986.

The spelling of 328811390 in words is "three hundred twenty-eight million, eight hundred eleven thousand, three hundred ninety".