1243401234 has 8 divisors (see below), whose sum is σ = 2486802480. Its totient is φ = 414467076.

The previous prime is 1243401217. The next prime is 1243401241. The reversal of 1243401234 is 4321043421.

It is a sphenic number, since it is the product of 3 distinct primes.

1243401234 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103616764 + ... + 103616775.

It is an arithmetic number, because the mean of its divisors is an integer number (310850310).

Almost surely, 2^1243401234 is an apocalyptic number.

1243401234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1243401234 is a wasteful number, since it uses less digits than its factorization.

1243401234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207233544.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1243401234 is about 35261.8949292292. The cubic root of 1243401234 is about 1075.3184516072.

Adding to 1243401234 its reverse (4321043421), we get a palindrome (5564444655).

The spelling of 1243401234 in words is "one billion, two hundred forty-three million, four hundred one thousand, two hundred thirty-four".