1421343742 has 48 divisors (see below), whose sum is σ = 2753256960. Its totient is φ = 537821856.

The previous prime is 1421343731. The next prime is 1421343743. The reversal of 1421343742 is 2473431241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421343743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41359 + ... + 67477.

It is an arithmetic number, because the mean of its divisors is an integer number (57359520).

Almost surely, 2^1421343742 is an apocalyptic number.

1421343742 is a deficient number, since it is larger than the sum of its proper divisors (1331913218).

1421343742 is a wasteful number, since it uses less digits than its factorization.

1421343742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26177 (or 26164 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 1421343742 is about 37700.7127518831. The cubic root of 1421343742 is about 1124.3452959683.

Adding to 1421343742 its reverse (2473431241), we get a palindrome (3894774983).

The spelling of 1421343742 in words is "one billion, four hundred twenty-one million, three hundred forty-three thousand, seven hundred forty-two".