1421084424 has 16 divisors (see below), whose sum is σ = 3552711120. Its totient is φ = 473694800.

The previous prime is 1421084393. The next prime is 1421084447. The reversal of 1421084424 is 4244801241.

It is a junction number, because it is equal to n+sod(n) for n = 1421084391 and 1421084400.

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, 29605902 + ... + 29605949.

It is an arithmetic number, because the mean of its divisors is an integer number (222044445).

Almost surely, 2^1421084424 is an apocalyptic number.

It is an amenable number.

1421084424 is an abundant number, since it is smaller than the sum of its proper divisors (2131626696).

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

1421084424 is a wasteful number, since it uses less digits than its factorization.

1421084424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59211860 (or 59211856 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 1421084424 is about 37697.2734292548. The cubic root of 1421084424 is about 1124.2769145022.

Adding to 1421084424 its reverse (4244801241), we get a palindrome (5665885665).

The spelling of 1421084424 in words is "one billion, four hundred twenty-one million, eighty-four thousand, four hundred twenty-four".