19389252 has 24 divisors (see below), whose sum is σ = 45313632. Its totient is φ = 6452800.

The previous prime is 19389241. The next prime is 19389257. The reversal of 19389252 is 25298391.

It is a self number, because there is not a number n which added to its sum of digits gives 19389252.

It is not an unprimeable number, because it can be changed into a prime (19389257) 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, 12352 + ... + 13832.

It is an arithmetic number, because the mean of its divisors is an integer number (1888068).

Almost surely, 2^19389252 is an apocalyptic number.

19389252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19389252 is an abundant number, since it is smaller than the sum of its proper divisors (25924380).

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

19389252 is a wasteful number, since it uses less digits than its factorization.

19389252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579 (or 2577 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 19389252 is about 4403.3228362227. The cubic root of 19389252 is about 268.6501073136.

The spelling of 19389252 in words is "nineteen million, three hundred eighty-nine thousand, two hundred fifty-two".