65028144 has 40 divisors (see below), whose sum is σ = 169078960. Its totient is φ = 21535488.

The previous prime is 65028109. The next prime is 65028149. The reversal of 65028144 is 44182056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65028149) 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, 3222 + ... + 11850.

It is an arithmetic number, because the mean of its divisors is an integer number (4226974).

Almost surely, 2^65028144 is an apocalyptic number.

It is an amenable number.

65028144 is an abundant number, since it is smaller than the sum of its proper divisors (104050816).

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

65028144 is a wasteful number, since it uses less digits than its factorization.

65028144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8797 (or 8791 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 65028144 is about 8064.0029761899. The cubic root of 65028144 is about 402.1305978987.

The spelling of 65028144 in words is "sixty-five million, twenty-eight thousand, one hundred forty-four".