1628863922 has 16 divisors (see below), whose sum is σ = 2792859072. Its totient is φ = 697954320.

The previous prime is 1628863897. The next prime is 1628863927. The reversal of 1628863922 is 2293688261.

It is not an unprimeable number, because it can be changed into a prime (1628863927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129233 + ... + 141275.

It is an arithmetic number, because the mean of its divisors is an integer number (174553692).

Almost surely, 2^1628863922 is an apocalyptic number.

1628863922 is a deficient number, since it is larger than the sum of its proper divisors (1163995150).

1628863922 is a wasteful number, since it uses less digits than its factorization.

1628863922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21713.

The product of its digits is 497664, while the sum is 47.

The square root of 1628863922 is about 40359.1863396675. The cubic root of 1628863922 is about 1176.5984394773.

The spelling of 1628863922 in words is "one billion, six hundred twenty-eight million, eight hundred sixty-three thousand, nine hundred twenty-two".