64363266 has 48 divisors (see below), whose sum is σ = 153092160. Its totient is φ = 19380960.

The previous prime is 64363261. The next prime is 64363289. The reversal of 64363266 is 66236346.

64363266 is a `hidden beast` number, since 643 + 6 + 3 + 2 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 64363266.

It is not an unprimeable number, because it can be changed into a prime (64363261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33315 + ... + 35193.

It is an arithmetic number, because the mean of its divisors is an integer number (3189420).

Almost surely, 2^64363266 is an apocalyptic number.

64363266 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 64363266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76546080).

64363266 is an abundant number, since it is smaller than the sum of its proper divisors (88728894).

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

64363266 is a wasteful number, since it uses less digits than its factorization.

64363266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2068 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

The square root of 64363266 is about 8022.6719987795. The cubic root of 64363266 is about 400.7553767835.

Subtracting 64363266 from its reverse (66236346), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 64363266 in words is "sixty-four million, three hundred sixty-three thousand, two hundred sixty-six".