428033258 has 8 divisors (see below), whose sum is σ = 648669252. Its totient is φ = 211810176.

The previous prime is 428033257. The next prime is 428033267. The reversal of 428033258 is 852330824.

It can be written as a sum of positive squares in 2 ways, for example, as 392951329 + 35081929 = 19823^2 + 5923^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (428033257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102985 + ... + 1103372.

Almost surely, 2^428033258 is an apocalyptic number.

428033258 is a deficient number, since it is larger than the sum of its proper divisors (220635994).

428033258 is a wasteful number, since it uses less digits than its factorization.

428033258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206456.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 428033258 is about 20688.9646430168. The cubic root of 428033258 is about 753.6317237984.

The spelling of 428033258 in words is "four hundred twenty-eight million, thirty-three thousand, two hundred fifty-eight".