64228416 has 84 divisors (see below), whose sum is σ = 197711568. Its totient is φ = 18348288.

The previous prime is 64228399. The next prime is 64228429. The reversal of 64228416 is 61482246.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5995 + ... + 12821.

Almost surely, 2^64228416 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 64228416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98855784).

64228416 is an abundant number, since it is smaller than the sum of its proper divisors (133483152).

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

64228416 is a wasteful number, since it uses less digits than its factorization.

64228416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6856 (or 6839 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 64228416 is about 8014.2632849190. The cubic root of 64228416 is about 400.4753016638.

The spelling of 64228416 in words is "sixty-four million, two hundred twenty-eight thousand, four hundred sixteen".