19345028 has 6 divisors (see below), whose sum is σ = 33853806. Its totient is φ = 9672512.

The previous prime is 19345019. The next prime is 19345037. The reversal of 19345028 is 82054391.

It is an interprime number because it is at equal distance from previous prime (19345019) and next prime (19345037).

It can be written as a sum of positive squares in only one way, i.e., 17909824 + 1435204 = 4232^2 + 1198^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19344985 and 19345003.

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 as a sum of consecutive naturals, namely, 2418125 + ... + 2418132.

It is an arithmetic number, because the mean of its divisors is an integer number (5642301).

Almost surely, 2^19345028 is an apocalyptic number.

It is an amenable number.

19345028 is a deficient number, since it is larger than the sum of its proper divisors (14508778).

19345028 is a wasteful number, since it uses less digits than its factorization.

19345028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4836261 (or 4836259 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 19345028 is about 4398.2983073002. The cubic root of 19345028 is about 268.4457015157.

The spelling of 19345028 in words is "nineteen million, three hundred forty-five thousand, twenty-eight".