19242656 has 12 divisors (see below), whose sum is σ = 37884042. Its totient is φ = 9621312.

The previous prime is 19242593. The next prime is 19242667. The reversal of 19242656 is 65624291.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14899600 + 4343056 = 3860^2 + 2084^2 .

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, 300635 + ... + 300698.

Almost surely, 2^19242656 is an apocalyptic number.

19242656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19242656 is a deficient number, since it is larger than the sum of its proper divisors (18641386).

19242656 is an equidigital number, since it uses as much as digits as its factorization.

19242656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601343 (or 601335 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 19242656 is about 4386.6451873841. The cubic root of 19242656 is about 267.9713342771.

The spelling of 19242656 in words is "nineteen million, two hundred forty-two thousand, six hundred fifty-six".