64221014 has 48 divisors (see below), whose sum is σ = 118900224. Its totient is φ = 25740000.

The previous prime is 64221013. The next prime is 64221029. The reversal of 64221014 is 41012246.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64221013) 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, 85139 + ... + 85889.

It is an arithmetic number, because the mean of its divisors is an integer number (2477088).

Almost surely, 2^64221014 is an apocalyptic number.

64221014 is a deficient number, since it is larger than the sum of its proper divisors (54679210).

64221014 is a wasteful number, since it uses less digits than its factorization.

64221014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 64221014 is about 8013.8014699642. The cubic root of 64221014 is about 400.4599168220.

The spelling of 64221014 in words is "sixty-four million, two hundred twenty-one thousand, fourteen".