123434004 has 12 divisors (see below), whose sum is σ = 288012704. Its totient is φ = 41144664.

The previous prime is 123433969. The next prime is 123434009. The reversal of 123434004 is 400434321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123434009) 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, 5143072 + ... + 5143095.

Almost surely, 2^123434004 is an apocalyptic number.

It is an amenable number.

123434004 is an abundant number, since it is smaller than the sum of its proper divisors (164578700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123434004 is a wasteful number, since it uses less digits than its factorization.

123434004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10286174 (or 10286172 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 123434004 is about 11110.0856882384. The cubic root of 123434004 is about 497.9032246911.

Adding to 123434004 its reverse (400434321), we get a palindrome (523868325).

The spelling of 123434004 in words is "one hundred twenty-three million, four hundred thirty-four thousand, four".