64267008 has 144 divisors (see below), whose sum is σ = 189895776. Its totient is φ = 19169280.

The previous prime is 64266971. The next prime is 64267009. The reversal of 64267008 is 80076246.

It is a self number, because there is not a number n which added to its sum of digits gives 64267008.

It is not an unprimeable number, because it can be changed into a prime (64267009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409266 + ... + 409422.

Almost surely, 2^64267008 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 64267008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94947888).

64267008 is an abundant number, since it is smaller than the sum of its proper divisors (125628768).

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

64267008 is a wasteful number, since it uses less digits than its factorization.

64267008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 64267008 is about 8016.6706306297. The cubic root of 64267008 is about 400.5554948732. Note that the first 3 decimals are identical.

The spelling of 64267008 in words is "sixty-four million, two hundred sixty-seven thousand, eight".