428504233 has 8 divisors (see below), whose sum is σ = 434844128. Its totient is φ = 422177184.

The previous prime is 428504231. The next prime is 428504239. The reversal of 428504233 is 332405824.

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 428504233 - 2¹ = 428504231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428504195 and 428504204.

It is not an unprimeable number, because it can be changed into a prime (428504231) 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, 79366 + ... + 84592.

It is an arithmetic number, because the mean of its divisors is an integer number (54355516).

Almost surely, 2^428504233 is an apocalyptic number.

It is an amenable number.

428504233 is a deficient number, since it is larger than the sum of its proper divisors (6339895).

428504233 is a wasteful number, since it uses less digits than its factorization.

428504233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 428504233 is about 20700.3437894157. The cubic root of 428504233 is about 753.9080353469.

The spelling of 428504233 in words is "four hundred twenty-eight million, five hundred four thousand, two hundred thirty-three".