65242872 has 96 divisors (see below), whose sum is σ = 188866080. Its totient is φ = 20275200.

The previous prime is 65242871. The next prime is 65242883. The reversal of 65242872 is 27824256.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65242871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184648 + ... + 185000.

It is an arithmetic number, because the mean of its divisors is an integer number (1967355).

Almost surely, 2^65242872 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 65242872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94433040).

65242872 is an abundant number, since it is smaller than the sum of its proper divisors (123623208).

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

65242872 is a wasteful number, since it uses less digits than its factorization.

65242872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 526 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 65242872 is about 8077.3059865279. The cubic root of 65242872 is about 402.5727337920.

The spelling of 65242872 in words is "sixty-five million, two hundred forty-two thousand, eight hundred seventy-two".