328123990 has 16 divisors (see below), whose sum is σ = 593426160. Its totient is φ = 130626720.

The previous prime is 328123969. The next prime is 328124023. The reversal of 328123990 is 99321823.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75645 + ... + 79864.

It is an arithmetic number, because the mean of its divisors is an integer number (37089135).

Almost surely, 2^328123990 is an apocalyptic number.

328123990 is a deficient number, since it is larger than the sum of its proper divisors (265302170).

328123990 is a wasteful number, since it uses less digits than its factorization.

328123990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155727.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 328123990 is about 18114.1930540667. The cubic root of 328123990 is about 689.7303364086.

The spelling of 328123990 in words is "three hundred twenty-eight million, one hundred twenty-three thousand, nine hundred ninety".