19468493 has 4 divisors (see below), whose sum is σ = 21238368. Its totient is φ = 17698620.

The previous prime is 19468487. The next prime is 19468499. The reversal of 19468493 is 39486491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (19468487) and next prime (19468499).

It is a cyclic number.

It is not a de Polignac number, because 19468493 - 2⁶ = 19468429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19468499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884921 + ... + 884942.

It is an arithmetic number, because the mean of its divisors is an integer number (5309592).

Almost surely, 2^19468493 is an apocalyptic number.

It is an amenable number.

19468493 is a deficient number, since it is larger than the sum of its proper divisors (1769875).

19468493 is a wasteful number, since it uses less digits than its factorization.

19468493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769874.

The product of its digits is 186624, while the sum is 44.

The square root of 19468493 is about 4412.3115257198. The cubic root of 19468493 is about 269.0155876044.

The spelling of 19468493 in words is "nineteen million, four hundred sixty-eight thousand, four hundred ninety-three".