1420340424 has 32 divisors (see below), whose sum is σ = 3673296000. Its totient is φ = 457120832.

The previous prime is 1420340419. The next prime is 1420340443. The reversal of 1420340424 is 4240430241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1420340394 and 1420340403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1019664 + ... + 1021055.

It is an arithmetic number, because the mean of its divisors is an integer number (114790500).

Almost surely, 2^1420340424 is an apocalyptic number.

It is an amenable number.

1420340424 is an abundant number, since it is smaller than the sum of its proper divisors (2252955576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420340424 is a wasteful number, since it uses less digits than its factorization.

1420340424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040757 (or 2040753 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1420340424 is about 37687.4040496291. The cubic root of 1420340424 is about 1124.0806775000.

Adding to 1420340424 its reverse (4240430241), we get a palindrome (5660770665).

The spelling of 1420340424 in words is "one billion, four hundred twenty million, three hundred forty thousand, four hundred twenty-four".