64216260 has 96 divisors (see below), whose sum is σ = 201801600. Its totient is φ = 16951680.

The previous prime is 64216247. The next prime is 64216261. The reversal of 64216260 is 6261246.

It is a happy number.

64216260 is a `hidden beast` number, since 642 + 16 + 2 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64216261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58315 + ... + 59405.

It is an arithmetic number, because the mean of its divisors is an integer number (2102100).

Almost surely, 2^64216260 is an apocalyptic number.

64216260 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 64216260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100900800).

64216260 is an abundant number, since it is smaller than the sum of its proper divisors (137585340).

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

64216260 is a wasteful number, since it uses less digits than its factorization.

64216260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 64216260 is about 8013.5048511872. The cubic root of 64216260 is about 400.4500351477.

The spelling of 64216260 in words is "sixty-four million, two hundred sixteen thousand, two hundred sixty".