19368961 has 8 divisors (see below), whose sum is σ = 20433920. Its totient is φ = 18308592.

The previous prime is 19368959. The next prime is 19368997. The reversal of 19368961 is 16986391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19368961 - 2¹ = 19368959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19368931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10816 + ... + 12478.

It is an arithmetic number, because the mean of its divisors is an integer number (2554240).

Almost surely, 2^19368961 is an apocalyptic number.

It is an amenable number.

19368961 is a deficient number, since it is larger than the sum of its proper divisors (1064959).

19368961 is a wasteful number, since it uses less digits than its factorization.

19368961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295.

The product of its digits is 69984, while the sum is 43.

The square root of 19368961 is about 4401.0181776493. The cubic root of 19368961 is about 268.5563598085.

The spelling of 19368961 in words is "nineteen million, three hundred sixty-eight thousand, nine hundred sixty-one".