1223430434 has 16 divisors (see below), whose sum is σ = 1857334968. Its totient is φ = 604353792.

The previous prime is 1223430427. The next prime is 1223430521. The reversal of 1223430434 is 4340343221.

It can be written as a sum of positive squares in 4 ways, for example, as 329241025 + 894189409 = 18145^2 + 29903^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63104 + ... + 80180.

Almost surely, 2^1223430434 is an apocalyptic number.

1223430434 is a deficient number, since it is larger than the sum of its proper divisors (633904534).

1223430434 is a wasteful number, since it uses less digits than its factorization.

1223430434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17509.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1223430434 is about 34977.5704416416. The cubic root of 1223430434 is about 1069.5303013141.

Adding to 1223430434 its reverse (4340343221), we get a palindrome (5563773655).

The spelling of 1223430434 in words is "one billion, two hundred twenty-three million, four hundred thirty thousand, four hundred thirty-four".