1143420422 has 4 divisors (see below), whose sum is σ = 1715130636. Its totient is φ = 571710210.

The previous prime is 1143420419. The next prime is 1143420431. The reversal of 1143420422 is 2240243411.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1143420422² = 2614820522893316168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285855104 + ... + 285855107.

It is an arithmetic number, because the mean of its divisors is an integer number (428782659).

Almost surely, 2^1143420422 is an apocalyptic number.

1143420422 is a deficient number, since it is larger than the sum of its proper divisors (571710214).

1143420422 is an equidigital number, since it uses as much as digits as its factorization.

1143420422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571710213.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1143420422 is about 33814.5001737420. The cubic root of 1143420422 is about 1045.6876564861.

Adding to 1143420422 its reverse (2240243411), we get a palindrome (3383663833).

The spelling of 1143420422 in words is "one billion, one hundred forty-three million, four hundred twenty thousand, four hundred twenty-two".