65128248 has 24 divisors (see below), whose sum is σ = 176389200. Its totient is φ = 21709392.

The previous prime is 65128223. The next prime is 65128253. The reversal of 65128248 is 84282156.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 452208 + ... + 452351.

It is an arithmetic number, because the mean of its divisors is an integer number (7349550).

Almost surely, 2^65128248 is an apocalyptic number.

It is an amenable number.

65128248 is an abundant number, since it is smaller than the sum of its proper divisors (111260952).

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

65128248 is a wasteful number, since it uses less digits than its factorization.

65128248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904571 (or 904564 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 65128248 is about 8070.2074322783. The cubic root of 65128248 is about 402.3368380510.

The spelling of 65128248 in words is "sixty-five million, one hundred twenty-eight thousand, two hundred forty-eight".