65888340 has 144 divisors (see below), whose sum is σ = 218256192. Its totient is φ = 14805504.

The previous prime is 65888323. The next prime is 65888351. The reversal of 65888340 is 4388856.

65888340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 65888292 and 65888301.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 214467 + ... + 214773.

It is an arithmetic number, because the mean of its divisors is an integer number (1515668).

Almost surely, 2^65888340 is an apocalyptic number.

65888340 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 65888340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109128096).

65888340 is an abundant number, since it is smaller than the sum of its proper divisors (152367852).

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

65888340 is a wasteful number, since it uses less digits than its factorization.

65888340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 65888340 is about 8117.1632976059. The cubic root of 65888340 is about 403.8959719739.

The spelling of 65888340 in words is "sixty-five million, eight hundred eighty-eight thousand, three hundred forty".