234243994440 has 32 divisors (see below), whose sum is σ = 702731983680. Its totient is φ = 62465065152.

The previous prime is 234243994399. The next prime is 234243994459. The reversal of 234243994440 is 44499342432.

It is a self number, because there is not a number n which added to its sum of digits gives 234243994440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976016524 + ... + 976016763.

It is an arithmetic number, because the mean of its divisors is an integer number (21960374490).

Almost surely, 2^234243994440 is an apocalyptic number.

234243994440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234243994440 is an abundant number, since it is smaller than the sum of its proper divisors (468487989240).

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

234243994440 is a wasteful number, since it uses less digits than its factorization.

234243994440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952033301 (or 1952033297 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 234243994440 in words is "two hundred thirty-four billion, two hundred forty-three million, nine hundred ninety-four thousand, four hundred forty".