19434434 has 8 divisors (see below), whose sum is σ = 30866508. Its totient is φ = 9145600.

The previous prime is 19434433. The next prime is 19434439. The reversal of 19434434 is 43443491.

It can be written as a sum of positive squares in 2 ways, for example, as 18464209 + 970225 = 4297^2 + 985^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 19434434.

It is not an unprimeable number, because it can be changed into a prime (19434431) 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, 285767 + ... + 285834.

Almost surely, 2^19434434 is an apocalyptic number.

19434434 is a deficient number, since it is larger than the sum of its proper divisors (11432074).

19434434 is a wasteful number, since it uses less digits than its factorization.

19434434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571620.

The product of its digits is 20736, while the sum is 32.

The square root of 19434434 is about 4408.4502946047. The cubic root of 19434434 is about 268.8586203081.

The spelling of 19434434 in words is "nineteen million, four hundred thirty-four thousand, four hundred thirty-four".