328632019 has 4 divisors (see below), whose sum is σ = 329374296. Its totient is φ = 327889744.

The previous prime is 328632013. The next prime is 328632043. The reversal of 328632019 is 910236823.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 328632019 - 2⁵ = 328631987 is a prime.

It is a super-2 number, since 2×328632019² = 215998007824032722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328632013) 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, 370474 + ... + 371359.

It is an arithmetic number, because the mean of its divisors is an integer number (82343574).

Almost surely, 2^328632019 is an apocalyptic number.

328632019 is a deficient number, since it is larger than the sum of its proper divisors (742277).

328632019 is an equidigital number, since it uses as much as digits as its factorization.

328632019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742276.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 328632019 is about 18128.2105846109. The cubic root of 328632019 is about 690.0861189157.

The spelling of 328632019 in words is "three hundred twenty-eight million, six hundred thirty-two thousand, nineteen".