19630828 has 24 divisors (see below), whose sum is σ = 39739392. Its totient is φ = 8310864.

The previous prime is 19630823. The next prime is 19630879. The reversal of 19630828 is 82803691.

It is not an unprimeable number, because it can be changed into a prime (19630823) 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, 1900 + ... + 6547.

It is an arithmetic number, because the mean of its divisors is an integer number (1655808).

Almost surely, 2^19630828 is an apocalyptic number.

It is an amenable number.

19630828 is an abundant number, since it is smaller than the sum of its proper divisors (20108564).

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

19630828 is a wasteful number, since it uses less digits than its factorization.

19630828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8541 (or 8539 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 19630828 is about 4430.6690239737. The cubic root of 19630828 is about 269.7612338184.

The spelling of 19630828 in words is "nineteen million, six hundred thirty thousand, eight hundred twenty-eight".