1420040344 has 16 divisors (see below), whose sum is σ = 2702316600. Its totient is φ = 699422592.

The previous prime is 1420040333. The next prime is 1420040357. The reversal of 1420040344 is 4430400241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324129 + ... + 1325200.

Almost surely, 2^1420040344 is an apocalyptic number.

It is an amenable number.

1420040344 is a deficient number, since it is larger than the sum of its proper divisors (1282276256).

1420040344 is a wasteful number, since it uses less digits than its factorization.

1420040344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649402 (or 2649398 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1420040344 is about 37683.4226683299. The cubic root of 1420040344 is about 1124.0015091818.

Adding to 1420040344 its reverse (4430400241), we get a palindrome (5850440585).

The spelling of 1420040344 in words is "one billion, four hundred twenty million, forty thousand, three hundred forty-four".