64375442 has 4 divisors (see below), whose sum is σ = 96563166. Its totient is φ = 32187720.

The previous prime is 64375433. The next prime is 64375489. The reversal of 64375442 is 24457346.

64375442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64144081 + 231361 = 8009^2 + 481^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16093859 + ... + 16093862.

Almost surely, 2^64375442 is an apocalyptic number.

64375442 is a deficient number, since it is larger than the sum of its proper divisors (32187724).

64375442 is a wasteful number, since it uses less digits than its factorization.

64375442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32187723.

The product of its digits is 80640, while the sum is 35.

The square root of 64375442 is about 8023.4308123146. The cubic root of 64375442 is about 400.7806463205.

The spelling of 64375442 in words is "sixty-four million, three hundred seventy-five thousand, four hundred forty-two".