1603434423 has 8 divisors (see below), whose sum is σ = 2151029248. Its totient is φ = 1062397944.

The previous prime is 1603434403. The next prime is 1603434433. The reversal of 1603434423 is 3244343061.

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

It is not a de Polignac number, because 1603434423 - 2¹⁴ = 1603418039 is a prime.

It is a super-2 number, since 2×1603434423² = 5142003897722685858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603434403) 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, 1639015 + ... + 1639992.

It is an arithmetic number, because the mean of its divisors is an integer number (268878656).

Almost surely, 2^1603434423 is an apocalyptic number.

1603434423 is a deficient number, since it is larger than the sum of its proper divisors (547594825).

1603434423 is a wasteful number, since it uses less digits than its factorization.

1603434423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279173.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 1603434423 is about 40042.9072745724. The cubic root of 1603434423 is about 1170.4433567022.

Adding to 1603434423 its reverse (3244343061), we get a palindrome (4847777484).

The spelling of 1603434423 in words is "one billion, six hundred three million, four hundred thirty-four thousand, four hundred twenty-three".