1628730422 has 24 divisors (see below), whose sum is σ = 2777997600. Its totient is φ = 714800240.

The previous prime is 1628730419. The next prime is 1628730427. The reversal of 1628730422 is 2240378261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628730427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109022 + ... + 123057.

It is an arithmetic number, because the mean of its divisors is an integer number (115749900).

Almost surely, 2^1628730422 is an apocalyptic number.

1628730422 is a deficient number, since it is larger than the sum of its proper divisors (1149267178).

1628730422 is a wasteful number, since it uses less digits than its factorization.

1628730422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232132 (or 232121 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 1628730422 is about 40357.5324072223. The cubic root of 1628730422 is about 1176.5662943359.

The spelling of 1628730422 in words is "one billion, six hundred twenty-eight million, seven hundred thirty thousand, four hundred twenty-two".