328699428 has 48 divisors (see below), whose sum is σ = 790352640. Its totient is φ = 106273024.

The previous prime is 328699381. The next prime is 328699429. The reversal of 328699428 is 824996823.

It is not an unprimeable number, because it can be changed into a prime (328699429) 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, 53701 + ... + 59507.

It is an arithmetic number, because the mean of its divisors is an integer number (16465680).

Almost surely, 2^328699428 is an apocalyptic number.

It is an amenable number.

328699428 is an abundant number, since it is smaller than the sum of its proper divisors (461653212).

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

328699428 is a wasteful number, since it uses less digits than its factorization.

328699428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5956 (or 5954 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 328699428 is about 18130.0697185642. The cubic root of 328699428 is about 690.1332991784.

The spelling of 328699428 in words is "three hundred twenty-eight million, six hundred ninety-nine thousand, four hundred twenty-eight".