1234455434 has 4 divisors (see below), whose sum is σ = 1851683154. Its totient is φ = 617227716.

The previous prime is 1234455427. The next prime is 1234455437. The reversal of 1234455434 is 4345544321.

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., 897182209 + 337273225 = 29953^2 + 18365^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1234455394 and 1234455403.

It is not an unprimeable number, because it can be changed into a prime (1234455437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308613857 + ... + 308613860.

Almost surely, 2^1234455434 is an apocalyptic number.

1234455434 is a deficient number, since it is larger than the sum of its proper divisors (617227720).

1234455434 is an equidigital number, since it uses as much as digits as its factorization.

1234455434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617227719.

The product of its digits is 115200, while the sum is 35.

The square root of 1234455434 is about 35134.8179730591. The cubic root of 1234455434 is about 1072.7334061296.

Adding to 1234455434 its reverse (4345544321), we get a palindrome (5579999755).

The spelling of 1234455434 in words is "one billion, two hundred thirty-four million, four hundred fifty-five thousand, four hundred thirty-four".