64224305 has 16 divisors (see below), whose sum is σ = 78641280. Its totient is φ = 50341248.

The previous prime is 64224301. The next prime is 64224361. The reversal of 64224305 is 50342246.

It is a cyclic number.

It is not a de Polignac number, because 64224305 - 2² = 64224301 is a prime.

It is a super-2 number, since 2×64224305² = 8249522705466050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64224301) 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, 64844 + ... + 65826.

It is an arithmetic number, because the mean of its divisors is an integer number (4915080).

Almost surely, 2^64224305 is an apocalyptic number.

It is an amenable number.

64224305 is a deficient number, since it is larger than the sum of its proper divisors (14416975).

64224305 is a wasteful number, since it uses less digits than its factorization.

64224305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 64224305 is about 8014.0068005961. The cubic root of 64224305 is about 400.4667572157.

The spelling of 64224305 in words is "sixty-four million, two hundred twenty-four thousand, three hundred five".