64320194 has 8 divisors (see below), whose sum is σ = 96514320. Its totient is φ = 32148756.

The previous prime is 64320181. The next prime is 64320199. The reversal of 64320194 is 49102346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64320199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8477 + ... + 14159.

It is an arithmetic number, because the mean of its divisors is an integer number (12064290).

Almost surely, 2^64320194 is an apocalyptic number.

64320194 is a deficient number, since it is larger than the sum of its proper divisors (32194126).

64320194 is a wasteful number, since it uses less digits than its factorization.

64320194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11344.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 64320194 is about 8019.9871570969. The cubic root of 64320194 is about 400.6659614564.

The spelling of 64320194 in words is "sixty-four million, three hundred twenty thousand, one hundred ninety-four".