123434439 has 8 divisors (see below), whose sum is σ = 164637312. Its totient is φ = 82260600.

The previous prime is 123434429. The next prime is 123434449. The reversal of 123434439 is 934434321.

It is an interprime number because it is at equal distance from previous prime (123434429) and next prime (123434449).

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

It is not a de Polignac number, because 123434439 - 2¹¹ = 123432391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123434429) 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, 6264 + ... + 16914.

It is an arithmetic number, because the mean of its divisors is an integer number (20579664).

Almost surely, 2^123434439 is an apocalyptic number.

123434439 is a deficient number, since it is larger than the sum of its proper divisors (41202873).

123434439 is a wasteful number, since it uses less digits than its factorization.

123434439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14517.

The product of its digits is 31104, while the sum is 33.

The square root of 123434439 is about 11110.1052650279. The cubic root of 123434439 is about 497.9038095857.

The spelling of 123434439 in words is "one hundred twenty-three million, four hundred thirty-four thousand, four hundred thirty-nine".