424005999 has 4 divisors (see below), whose sum is σ = 565341336. Its totient is φ = 282670664.

The previous prime is 424005983. The next prime is 424006019. The reversal of 424005999 is 999500424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 424005999 - 2⁴ = 424005983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424005999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424005899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70667664 + ... + 70667669.

It is an arithmetic number, because the mean of its divisors is an integer number (141335334).

Almost surely, 2^424005999 is an apocalyptic number.

424005999 is a deficient number, since it is larger than the sum of its proper divisors (141335337).

424005999 is a wasteful number, since it uses less digits than its factorization.

424005999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141335336.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 424005999 is about 20591.4059500560. The cubic root of 424005999 is about 751.2606939027.

The spelling of 424005999 in words is "four hundred twenty-four million, five thousand, nine hundred ninety-nine".