65738280 has 32 divisors (see below), whose sum is σ = 197215200. Its totient is φ = 17530176.

The previous prime is 65738263. The next prime is 65738311. The reversal of 65738280 is 8283756.

65738280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273790 + ... + 274029.

It is an arithmetic number, because the mean of its divisors is an integer number (6162975).

Almost surely, 2^65738280 is an apocalyptic number.

65738280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65738280 is an abundant number, since it is smaller than the sum of its proper divisors (131476920).

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

65738280 is a wasteful number, since it uses less digits than its factorization.

65738280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547833 (or 547829 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 65738280 is about 8107.9146517462. The cubic root of 65738280 is about 403.5891159621.

The spelling of 65738280 in words is "sixty-five million, seven hundred thirty-eight thousand, two hundred eighty".