1420401424 has 20 divisors (see below), whose sum is σ = 2963722636. Its totient is φ = 655569792.

The previous prime is 1420401421. The next prime is 1420401439. The reversal of 1420401424 is 4241040241.

It can be written as a sum of positive squares in 2 ways, for example, as 85229824 + 1335171600 = 9232^2 + 36540^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1420401395 and 1420401404.

It is not an unprimeable number, because it can be changed into a prime (1420401421) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3414219 + ... + 3414634.

Almost surely, 2^1420401424 is an apocalyptic number.

It is an amenable number.

1420401424 is an abundant number, since it is smaller than the sum of its proper divisors (1543321212).

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

1420401424 is a wasteful number, since it uses less digits than its factorization.

1420401424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6828874 (or 6828868 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1420401424 is about 37688.2133298993. The cubic root of 1420401424 is about 1124.0967694027.

Adding to 1420401424 its reverse (4241040241), we get a palindrome (5661441665).

The spelling of 1420401424 in words is "one billion, four hundred twenty million, four hundred one thousand, four hundred twenty-four".