64328446 has 16 divisors (see below), whose sum is σ = 118760544. Its totient is φ = 25448544.

The previous prime is 64328437. The next prime is 64328449. The reversal of 64328446 is 64482346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64328449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 176545 + ... + 176908.

It is an arithmetic number, because the mean of its divisors is an integer number (7422534).

Almost surely, 2^64328446 is an apocalyptic number.

64328446 is a deficient number, since it is larger than the sum of its proper divisors (54432098).

64328446 is a wasteful number, since it uses less digits than its factorization.

64328446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353475.

The product of its digits is 110592, while the sum is 37.

The square root of 64328446 is about 8020.5016052614. The cubic root of 64328446 is about 400.6830952880.

It can be divided in two parts, 6432 and 8446, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 64328446 in words is "sixty-four million, three hundred twenty-eight thousand, four hundred forty-six".