64369312 has 48 divisors (see below), whose sum is σ = 147026880. Its totient is φ = 27168768.

The previous prime is 64369309. The next prime is 64369351. The reversal of 64369312 is 21396346.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12864 + ... + 17152.

It is an arithmetic number, because the mean of its divisors is an integer number (3063060).

Almost surely, 2^64369312 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 64369312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73513440).

64369312 is an abundant number, since it is smaller than the sum of its proper divisors (82657568).

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

64369312 is a wasteful number, since it uses less digits than its factorization.

64369312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373 (or 4365 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 64369312 is about 8023.0487970596. The cubic root of 64369312 is about 400.7679247854.

The spelling of 64369312 in words is "sixty-four million, three hundred sixty-nine thousand, three hundred twelve".