19304049 has 4 divisors (see below), whose sum is σ = 25738736. Its totient is φ = 12869364.

The previous prime is 19304039. The next prime is 19304063. The reversal of 19304049 is 94040391.

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 not a de Polignac number, because 19304049 - 2¹⁷ = 19172977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19304039) 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, 3217339 + ... + 3217344.

It is an arithmetic number, because the mean of its divisors is an integer number (6434684).

Almost surely, 2^19304049 is an apocalyptic number.

It is an amenable number.

19304049 is a deficient number, since it is larger than the sum of its proper divisors (6434687).

19304049 is an equidigital number, since it uses as much as digits as its factorization.

19304049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434686.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 19304049 is about 4393.6373314146. The cubic root of 19304049 is about 268.2560160284.

The spelling of 19304049 in words is "nineteen million, three hundred four thousand, forty-nine".