1628133468 has 24 divisors (see below), whose sum is σ = 4091207568. Its totient is φ = 500964096.

The previous prime is 1628133461. The next prime is 1628133587. The reversal of 1628133468 is 8643318261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628133461) 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 7 ways as a sum of consecutive naturals, for example, 5218221 + ... + 5218532.

It is an arithmetic number, because the mean of its divisors is an integer number (170466982).

Almost surely, 2^1628133468 is an apocalyptic number.

It is an amenable number.

1628133468 is an abundant number, since it is smaller than the sum of its proper divisors (2463074100).

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

1628133468 is a wasteful number, since it uses less digits than its factorization.

1628133468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10436773 (or 10436771 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 1628133468 is about 40350.1359105518. The cubic root of 1628133468 is about 1176.4225337374.

The spelling of 1628133468 in words is "one billion, six hundred twenty-eight million, one hundred thirty-three thousand, four hundred sixty-eight".