19247028 has 12 divisors (see below), whose sum is σ = 44909760. Its totient is φ = 6415672.

The previous prime is 19246979. The next prime is 19247047. The reversal of 19247028 is 82074291.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 19247028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801948 + ... + 801971.

It is an arithmetic number, because the mean of its divisors is an integer number (3742480).

Almost surely, 2^19247028 is an apocalyptic number.

It is an amenable number.

19247028 is an abundant number, since it is smaller than the sum of its proper divisors (25662732).

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

19247028 is a wasteful number, since it uses less digits than its factorization.

19247028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603926 (or 1603924 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 19247028 is about 4387.1434897892. The cubic root of 19247028 is about 267.9916274209.

The spelling of 19247028 in words is "nineteen million, two hundred forty-seven thousand, twenty-eight".