19309034 has 4 divisors (see below), whose sum is σ = 28963554. Its totient is φ = 9654516.

The previous prime is 19309033. The next prime is 19309039. The reversal of 19309034 is 43090391.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18088009 + 1221025 = 4253^2 + 1105^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19308988 and 19309006.

It is not an unprimeable number, because it can be changed into a prime (19309033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4827257 + ... + 4827260.

Almost surely, 2^19309034 is an apocalyptic number.

19309034 is a deficient number, since it is larger than the sum of its proper divisors (9654520).

19309034 is an equidigital number, since it uses as much as digits as its factorization.

19309034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9654519.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 19309034 is about 4394.2045924149. The cubic root of 19309034 is about 268.2791051594.

The spelling of 19309034 in words is "nineteen million, three hundred nine thousand, thirty-four".