1628326560 has 96 divisors (see below), whose sum is σ = 5861987712. Its totient is φ = 372188160.

The previous prime is 1628326547. The next prime is 1628326571. The reversal of 1628326560 is 656238261.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238951 + ... + 245670.

It is an arithmetic number, because the mean of its divisors is an integer number (61062372).

Almost surely, 2^1628326560 is an apocalyptic number.

1628326560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1628326560 is an abundant number, since it is smaller than the sum of its proper divisors (4233661152).

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

1628326560 is a wasteful number, since it uses less digits than its factorization.

1628326560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484646 (or 484638 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 1628326560 is about 40352.5285453093. The cubic root of 1628326560 is about 1176.4690386882.

The spelling of 1628326560 in words is "one billion, six hundred twenty-eight million, three hundred twenty-six thousand, five hundred sixty".