234436420422 has 64 divisors (see below), whose sum is σ = 528764785920. Its totient is φ = 76978900800.

The previous prime is 234436420399. The next prime is 234436420451. The reversal of 234436420422 is 224024634432.

234436420422 is a `hidden beast` number, since 2 + 3 + 4 + 4 + 3 + 642 + 0 + 4 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3160297 + ... + 3233627.

It is an arithmetic number, because the mean of its divisors is an integer number (8261949780).

Almost surely, 2^234436420422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234436420422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264382392960).

234436420422 is an abundant number, since it is smaller than the sum of its proper divisors (294328365498).

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

234436420422 is a wasteful number, since it uses less digits than its factorization.

234436420422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74226 (or 74220 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

The spelling of 234436420422 in words is "two hundred thirty-four billion, four hundred thirty-six million, four hundred twenty thousand, four hundred twenty-two".