64223946 has 24 divisors (see below), whose sum is σ = 139299264. Its totient is φ = 21385320.

The previous prime is 64223903. The next prime is 64223953. The reversal of 64223946 is 64932246.

64223946 is a `hidden beast` number, since 642 + 2 + 3 + 9 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 64223946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32725 + ... + 34631.

It is an arithmetic number, because the mean of its divisors is an integer number (5804136).

Almost surely, 2^64223946 is an apocalyptic number.

64223946 is an abundant number, since it is smaller than the sum of its proper divisors (75075318).

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

64223946 is a wasteful number, since it uses less digits than its factorization.

64223946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786 (or 3783 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 64223946 is about 8013.9844022808. The cubic root of 64223946 is about 400.4660110401.

The spelling of 64223946 in words is "sixty-four million, two hundred twenty-three thousand, nine hundred forty-six".