1629629628 has 48 divisors (see below), whose sum is σ = 4260273024. Its totient is φ = 480479040.

The previous prime is 1629629627. The next prime is 1629629629. The reversal of 1629629628 is 8269269261.

It is an interprime number because it is at equal distance from previous prime (1629629627) and next prime (1629629629).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1629629627) 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 15 ways as a sum of consecutive naturals, for example, 161950 + ... + 171717.

It is an arithmetic number, because the mean of its divisors is an integer number (88755688).

Almost surely, 2^1629629628 is an apocalyptic number.

It is an amenable number.

1629629628 is an abundant number, since it is smaller than the sum of its proper divisors (2630643396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1629629628 is a wasteful number, since it uses less digits than its factorization.

1629629628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333722 (or 333720 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 1629629628 is about 40368.6713677822. The cubic root of 1629629628 is about 1176.7827780498.

The spelling of 1629629628 in words is "one billion, six hundred twenty-nine million, six hundred twenty-nine thousand, six hundred twenty-eight".