64225868 has 36 divisors (see below), whose sum is σ = 131449752. Its totient is φ = 27377280.

The previous prime is 64225841. The next prime is 64225873. The reversal of 64225868 is 86852246.

64225868 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

64225868 is strictly pandigital in base 9.

It is a congruent number.

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, 40580 + ... + 42132.

It is an arithmetic number, because the mean of its divisors is an integer number (3651382).

Almost surely, 2^64225868 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 64225868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65724876).

64225868 is an abundant number, since it is smaller than the sum of its proper divisors (67223884).

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

64225868 is a wasteful number, since it uses less digits than its factorization.

64225868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782 (or 1773 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 64225868 is about 8014.1043167655. The cubic root of 64225868 is about 400.4700058533.

The spelling of 64225868 in words is "sixty-four million, two hundred twenty-five thousand, eight hundred sixty-eight".