64424146 has 8 divisors (see below), whose sum is σ = 96736140. Its totient is φ = 32178768.

The previous prime is 64424111. The next prime is 64424147. The reversal of 64424146 is 64142446.

64424146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51998521 + 12425625 = 7211^2 + 3525^2 .

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

It is not an unprimeable number, because it can be changed into a prime (64424147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14161 + ... + 18148.

Almost surely, 2^64424146 is an apocalyptic number.

64424146 is a deficient number, since it is larger than the sum of its proper divisors (32311994).

64424146 is a wasteful number, since it uses less digits than its factorization.

64424146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33308.

The product of its digits is 18432, while the sum is 31.

The square root of 64424146 is about 8026.4653490811. The cubic root of 64424146 is about 400.8816926174.

The spelling of 64424146 in words is "sixty-four million, four hundred twenty-four thousand, one hundred forty-six".