1424340143 has 4 divisors (see below), whose sum is σ = 1439024160. Its totient is φ = 1409656128.

The previous prime is 1424340139. The next prime is 1424340173. The reversal of 1424340143 is 3410434241.

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

It is a cyclic number.

It is not a de Polignac number, because 1424340143 - 2² = 1424340139 is a prime.

It is a super-2 number, since 2×1424340143² = 4057489685922520898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424340103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7341863 + ... + 7342056.

It is an arithmetic number, because the mean of its divisors is an integer number (359756040).

Almost surely, 2^1424340143 is an apocalyptic number.

1424340143 is a deficient number, since it is larger than the sum of its proper divisors (14684017).

1424340143 is an equidigital number, since it uses as much as digits as its factorization.

1424340143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14684016.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1424340143 is about 37740.4311448611. The cubic root of 1424340143 is about 1125.1348363160.

Adding to 1424340143 its reverse (3410434241), we get a palindrome (4834774384).

The spelling of 1424340143 in words is "one billion, four hundred twenty-four million, three hundred forty thousand, one hundred forty-three".