1143220434 has 8 divisors (see below), whose sum is σ = 2286440880. Its totient is φ = 381073476.

The previous prime is 1143220423. The next prime is 1143220447. The reversal of 1143220434 is 4340223411.

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

1143220434 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, 95268364 + ... + 95268375.

It is an arithmetic number, because the mean of its divisors is an integer number (285805110).

Almost surely, 2^1143220434 is an apocalyptic number.

1143220434 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.

1143220434 is a wasteful number, since it uses less digits than its factorization.

1143220434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190536744.

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

The square root of 1143220434 is about 33811.5429106688. The cubic root of 1143220434 is about 1045.6266881924.

Adding to 1143220434 its reverse (4340223411), we get a palindrome (5483443845).

The spelling of 1143220434 in words is "one billion, one hundred forty-three million, two hundred twenty thousand, four hundred thirty-four".