424128959 has 8 divisors (see below), whose sum is σ = 429898560. Its totient is φ = 418369536.

The previous prime is 424128941. The next prime is 424128977. The reversal of 424128959 is 959821424.

It is an interprime number because it is at equal distance from previous prime (424128941) and next prime (424128977).

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 424128959 - 2²⁴ = 407351743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424128259) 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, 120959 + ... + 124415.

It is an arithmetic number, because the mean of its divisors is an integer number (53737320).

Almost surely, 2^424128959 is an apocalyptic number.

424128959 is a deficient number, since it is larger than the sum of its proper divisors (5769601).

424128959 is a wasteful number, since it uses less digits than its factorization.

424128959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089.

The product of its digits is 207360, while the sum is 44.

The square root of 424128959 is about 20594.3914452455. The cubic root of 424128959 is about 751.3333077235. Note that the first 4 decimals are identical.

The spelling of 424128959 in words is "four hundred twenty-four million, one hundred twenty-eight thousand, nine hundred fifty-nine".