65268444 has 72 divisors (see below), whose sum is σ = 163099440. Its totient is φ = 20289024.

The previous prime is 65268421. The next prime is 65268449. The reversal of 65268444 is 44486256.

It is a super-2 number, since 2×65268444² = 8519939564362272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65268449) 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 23 ways as a sum of consecutive naturals, for example, 476344 + ... + 476480.

It is an arithmetic number, because the mean of its divisors is an integer number (2265270).

Almost surely, 2^65268444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65268444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81549720).

65268444 is an abundant number, since it is smaller than the sum of its proper divisors (97830996).

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

65268444 is a wasteful number, since it uses less digits than its factorization.

65268444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 208 counting only the distinct ones).

The product of its digits is 184320, while the sum is 39.

The square root of 65268444 is about 8078.8887849753. Note that the first 3 decimals coincide. The cubic root of 65268444 is about 402.6253231653.

It can be divided in two parts, 652 and 68444, that added together give a palindrome (69096).

The spelling of 65268444 in words is "sixty-five million, two hundred sixty-eight thousand, four hundred forty-four".