13019928 has 16 divisors (see below), whose sum is σ = 32549880. Its totient is φ = 4339968.

The previous prime is 13019917. The next prime is 13019933. The reversal of 13019928 is 82991031.

It is a congruent number.

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, 271225 + ... + 271272.

Almost surely, 2^13019928 is an apocalyptic number.

It is an amenable number.

13019928 is an abundant number, since it is smaller than the sum of its proper divisors (19529952).

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

13019928 is a wasteful number, since it uses less digits than its factorization.

13019928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542506 (or 542502 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 13019928 is about 3608.3137335880. The cubic root of 13019928 is about 235.2535546057.

The spelling of 13019928 in words is "thirteen million, nineteen thousand, nine hundred twenty-eight".