234423740136 has 32 divisors (see below), whose sum is σ = 586089891360. Its totient is φ = 78137174592.

The previous prime is 234423740119. The next prime is 234423740137. The reversal of 234423740136 is 631047324432.

It is a junction number, because it is equal to n+sod(n) for n = 234423740094 and 234423740103.

It is not an unprimeable number, because it can be changed into a prime (234423740137) 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, 234831 + ... + 723873.

It is an arithmetic number, because the mean of its divisors is an integer number (18315309105).

Almost surely, 2^234423740136 is an apocalyptic number.

It is an amenable number.

234423740136 is an abundant number, since it is smaller than the sum of its proper divisors (351666151224).

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

234423740136 is a wasteful number, since it uses less digits than its factorization.

234423740136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509025 (or 509021 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 39.

The spelling of 234423740136 in words is "two hundred thirty-four billion, four hundred twenty-three million, seven hundred forty thousand, one hundred thirty-six".