328421619 has 12 divisors (see below), whose sum is σ = 478123776. Its totient is φ = 217222992.

The previous prime is 328421617. The next prime is 328421629. The reversal of 328421619 is 916124823.

328421619 is a `hidden beast` number, since 32 + 8 + 4 + 2 + 1 + 619 = 666.

It is not a de Polignac number, because 328421619 - 2¹ = 328421617 is a prime.

It is a super-2 number, since 2×328421619² = 215721519653162322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (328421617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142524 + ... + 144809.

It is an arithmetic number, because the mean of its divisors is an integer number (39843648).

Almost surely, 2^328421619 is an apocalyptic number.

328421619 is a deficient number, since it is larger than the sum of its proper divisors (149702157).

328421619 is a wasteful number, since it uses less digits than its factorization.

328421619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287466 (or 287463 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 328421619 is about 18122.4065454895. The cubic root of 328421619 is about 689.9388162510.

The spelling of 328421619 in words is "three hundred twenty-eight million, four hundred twenty-one thousand, six hundred nineteen".