424128971 has 16 divisors (see below), whose sum is σ = 518229504. Its totient is φ = 338822784.

The previous prime is 424128941. The next prime is 424128977. The reversal of 424128971 is 179821424.

It is a happy number.

It is not a de Polignac number, because 424128971 - 2¹⁸ = 423866827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424128977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5045 + ... + 29558.

It is an arithmetic number, because the mean of its divisors is an integer number (32389344).

Almost surely, 2^424128971 is an apocalyptic number.

424128971 is a deficient number, since it is larger than the sum of its proper divisors (94100533).

424128971 is a wasteful number, since it uses less digits than its factorization.

424128971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34730.

The product of its digits is 32256, while the sum is 38.

The square root of 424128971 is about 20594.3917365869. The cubic root of 424128971 is about 751.3333148094. Note that the first 4 decimals are identical.

The spelling of 424128971 in words is "four hundred twenty-four million, one hundred twenty-eight thousand, nine hundred seventy-one".