328042901 has 4 divisors (see below), whose sum is σ = 328403904. Its totient is φ = 327681900.

The previous prime is 328042873. The next prime is 328042907. The reversal of 328042901 is 109240823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328042901 is a prime.

It is a super-2 number, since 2×328042901² = 215224289792991602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328042907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179135 + ... + 180956.

It is an arithmetic number, because the mean of its divisors is an integer number (82100976).

Almost surely, 2^328042901 is an apocalyptic number.

It is an amenable number.

328042901 is a deficient number, since it is larger than the sum of its proper divisors (361003).

328042901 is an equidigital number, since it uses as much as digits as its factorization.

328042901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361002.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 328042901 is about 18111.9546432736. The cubic root of 328042901 is about 689.6735142389.

The spelling of 328042901 in words is "three hundred twenty-eight million, forty-two thousand, nine hundred one".