1442400343 has 16 divisors (see below), whose sum is σ = 1565498880. Its totient is φ = 1323766656.

The previous prime is 1442400319. The next prime is 1442400373. The reversal of 1442400343 is 3430042441.

It is not a de Polignac number, because 1442400343 - 2²¹ = 1440303191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442400373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222928 + ... + 229306.

It is an arithmetic number, because the mean of its divisors is an integer number (97843680).

Almost surely, 2^1442400343 is an apocalyptic number.

1442400343 is a deficient number, since it is larger than the sum of its proper divisors (123098537).

1442400343 is a wasteful number, since it uses less digits than its factorization.

1442400343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1442400343 is about 37978.9460490941. The cubic root of 1442400343 is about 1129.8703333606.

Adding to 1442400343 its reverse (3430042441), we get a palindrome (4872442784).

The spelling of 1442400343 in words is "one billion, four hundred forty-two million, four hundred thousand, three hundred forty-three".