65300280 has 64 divisors (see below), whose sum is σ = 196905600. Its totient is φ = 17324160.

The previous prime is 65300239. The next prime is 65300329. The reversal of 65300280 is 8200356.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 65300280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24031 + ... + 26609.

It is an arithmetic number, because the mean of its divisors is an integer number (3076650).

Almost surely, 2^65300280 is an apocalyptic number.

65300280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65300280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98452800).

65300280 is an abundant number, since it is smaller than the sum of its proper divisors (131605320).

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

65300280 is a wasteful number, since it uses less digits than its factorization.

65300280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 65300280 is about 8080.8588652445. The cubic root of 65300280 is about 402.6907753987.

The spelling of 65300280 in words is "sixty-five million, three hundred thousand, two hundred eighty".