19490325 has 24 divisors (see below), whose sum is σ = 32456256. Its totient is φ = 10320000.

The previous prime is 19490323. The next prime is 19490329. The reversal of 19490325 is 52309491.

It is not a de Polignac number, because 19490325 - 2¹ = 19490323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19490323) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 10465 + ... + 12185.

It is an arithmetic number, because the mean of its divisors is an integer number (1352344).

Almost surely, 2^19490325 is an apocalyptic number.

19490325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19490325 is a deficient number, since it is larger than the sum of its proper divisors (12965931).

19490325 is a wasteful number, since it uses less digits than its factorization.

19490325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885 (or 1880 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 19490325 is about 4414.7848192183. The cubic root of 19490325 is about 269.1161082129.

The spelling of 19490325 in words is "nineteen million, four hundred ninety thousand, three hundred twenty-five".