1628115752 has 16 divisors (see below), whose sum is σ = 3079733940. Its totient is φ = 806853376.

The previous prime is 1628115703. The next prime is 1628115761. The reversal of 1628115752 is 2575118261.

It can be written as a sum of positive squares in 2 ways, for example, as 1621995076 + 6120676 = 40274^2 + 2474^2 .

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 3 ways as a sum of consecutive naturals, for example, 899603 + ... + 901410.

Almost surely, 2^1628115752 is an apocalyptic number.

It is an amenable number.

1628115752 is a deficient number, since it is larger than the sum of its proper divisors (1451618188).

1628115752 is a wasteful number, since it uses less digits than its factorization.

1628115752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801132 (or 1801128 counting only the distinct ones).

The product of its digits is 33600, while the sum is 38.

The square root of 1628115752 is about 40349.9163815738. The cubic root of 1628115752 is about 1176.4182667700.

The spelling of 1628115752 in words is "one billion, six hundred twenty-eight million, one hundred fifteen thousand, seven hundred fifty-two".