424424399 has 8 divisors (see below), whose sum is σ = 485217408. Its totient is φ = 363671640.

The previous prime is 424424389. The next prime is 424424443. The reversal of 424424399 is 993424424.

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 424424399 - 2⁴ = 424424383 is a prime.

It is a super-3 number, since 3×424424399³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424424339) 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, 17624 + ... + 34050.

It is an arithmetic number, because the mean of its divisors is an integer number (60652176).

Almost surely, 2^424424399 is an apocalyptic number.

424424399 is a deficient number, since it is larger than the sum of its proper divisors (60793009).

424424399 is a wasteful number, since it uses less digits than its factorization.

424424399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20125.

The product of its digits is 248832, while the sum is 41.

The square root of 424424399 is about 20601.5630232271. The cubic root of 424424399 is about 751.5077219646.

The spelling of 424424399 in words is "four hundred twenty-four million, four hundred twenty-four thousand, three hundred ninety-nine".