23400000234 has 48 divisors (see below), whose sum is σ = 57811775112. Its totient is φ = 6776469504.

The previous prime is 23400000229. The next prime is 23400000257. The reversal of 23400000234 is 43200000432.

It can be written as a sum of positive squares in 4 ways, for example, as 21454925625 + 1945074609 = 146475^2 + 44103^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2937199 + ... + 2945154.

Almost surely, 2^23400000234 is an apocalyptic number.

23400000234 is an abundant number, since it is smaller than the sum of its proper divisors (34411774878).

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

23400000234 is a wasteful number, since it uses less digits than its factorization.

23400000234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882391 (or 5882388 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 23400000234 its reverse (43200000432), we get a palindrome (66600000666).

The spelling of 23400000234 in words is "twenty-three billion, four hundred million, two hundred thirty-four", and thus it is an aban number.