1421043424 has 24 divisors (see below), whose sum is σ = 2815508808. Its totient is φ = 705993600.

The previous prime is 1421043391. The next prime is 1421043443. The reversal of 1421043424 is 4243401241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136402 + ... + 146449.

It is an arithmetic number, because the mean of its divisors is an integer number (117312867).

Almost surely, 2^1421043424 is an apocalyptic number.

It is an amenable number.

1421043424 is a deficient number, since it is larger than the sum of its proper divisors (1394465384).

1421043424 is a wasteful number, since it uses less digits than its factorization.

1421043424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283018 (or 283010 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1421043424 is about 37696.7296194245. The cubic root of 1421043424 is about 1124.2661021498.

Adding to 1421043424 its reverse (4243401241), we get a palindrome (5664444665).

The spelling of 1421043424 in words is "one billion, four hundred twenty-one million, forty-three thousand, four hundred twenty-four".