1234354439 has 4 divisors (see below), whose sum is σ = 1248223680. Its totient is φ = 1220485200.

The previous prime is 1234354427. The next prime is 1234354453. The reversal of 1234354439 is 9344534321.

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

It is a cyclic number.

It is not a de Polignac number, because 1234354439 - 2⁴ = 1234354423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234354489) 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, 6934487 + ... + 6934664.

It is an arithmetic number, because the mean of its divisors is an integer number (312055920).

Almost surely, 2^1234354439 is an apocalyptic number.

1234354439 is a deficient number, since it is larger than the sum of its proper divisors (13869241).

1234354439 is an equidigital number, since it uses as much as digits as its factorization.

1234354439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13869240.

The product of its digits is 155520, while the sum is 38.

The square root of 1234354439 is about 35133.3806941490. The cubic root of 1234354439 is about 1072.7041506749.

The spelling of 1234354439 in words is "one billion, two hundred thirty-four million, three hundred fifty-four thousand, four hundred thirty-nine".