1628818323 has 32 divisors (see below), whose sum is σ = 2435374080. Its totient is φ = 959861760.

The previous prime is 1628818319. The next prime is 1628818333. The reversal of 1628818323 is 3238188261.

It is not a de Polignac number, because 1628818323 - 2² = 1628818319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1628818333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240163 + ... + 246851.

It is an arithmetic number, because the mean of its divisors is an integer number (76105440).

Almost surely, 2^1628818323 is an apocalyptic number.

1628818323 is a deficient number, since it is larger than the sum of its proper divisors (806555757).

1628818323 is a wasteful number, since it uses less digits than its factorization.

1628818323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6907.

The product of its digits is 110592, while the sum is 42.

The square root of 1628818323 is about 40358.6214209554. The cubic root of 1628818323 is about 1176.5874600022.

The spelling of 1628818323 in words is "one billion, six hundred twenty-eight million, eight hundred eighteen thousand, three hundred twenty-three".