65428458 has 8 divisors (see below), whose sum is σ = 130856928. Its totient is φ = 21809484.

The previous prime is 65428453. The next prime is 65428459. The reversal of 65428458 is 85482456.

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

65428458 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65428453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5452366 + ... + 5452377.

It is an arithmetic number, because the mean of its divisors is an integer number (16357116).

Almost surely, 2^65428458 is an apocalyptic number.

65428458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65428458 is a wasteful number, since it uses less digits than its factorization.

65428458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10904748.

The product of its digits is 307200, while the sum is 42.

The square root of 65428458 is about 8088.7859410421. The cubic root of 65428458 is about 402.9540839304.

The spelling of 65428458 in words is "sixty-five million, four hundred twenty-eight thousand, four hundred fifty-eight".