424000643 has 8 divisors (see below), whose sum is σ = 462976560. Its totient is φ = 385096480.

The previous prime is 424000631. The next prime is 424000651. The reversal of 424000643 is 346000424.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 424000643 - 2⁴ = 424000627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424000613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5180 + ... + 29577.

It is an arithmetic number, because the mean of its divisors is an integer number (57872070).

Almost surely, 2^424000643 is an apocalyptic number.

424000643 is a deficient number, since it is larger than the sum of its proper divisors (38975917).

424000643 is a wasteful number, since it uses less digits than its factorization.

424000643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35877.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 424000643 is about 20591.2758953883. The cubic root of 424000643 is about 751.2575306069.

The spelling of 424000643 in words is "four hundred twenty-four million, six hundred forty-three", and thus it is an aban number.