424383921 has 32 divisors (see below), whose sum is σ = 683840640. Its totient is φ = 258552000.

The previous prime is 424383919. The next prime is 424383929. The reversal of 424383921 is 129383424.

It is not a de Polignac number, because 424383921 - 2¹ = 424383919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (424383929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29466 + ... + 41436.

It is an arithmetic number, because the mean of its divisors is an integer number (21370020).

Almost surely, 2^424383921 is an apocalyptic number.

It is an amenable number.

424383921 is a deficient number, since it is larger than the sum of its proper divisors (259456719).

424383921 is a wasteful number, since it uses less digits than its factorization.

424383921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12094 (or 12088 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 424383921 is about 20600.5805986142. The cubic root of 424383921 is about 751.4838303938.

The spelling of 424383921 in words is "four hundred twenty-four million, three hundred eighty-three thousand, nine hundred twenty-one".