64064442 has 32 divisors (see below), whose sum is σ = 140333760. Its totient is φ = 19376640.

The previous prime is 64064419. The next prime is 64064443. The reversal of 64064442 is 24446046.

It is not an unprimeable number, because it can be changed into a prime (64064443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2359 + ... + 11562.

It is an arithmetic number, because the mean of its divisors is an integer number (4385430).

Almost surely, 2^64064442 is an apocalyptic number.

64064442 is an abundant number, since it is smaller than the sum of its proper divisors (76269318).

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

64064442 is a wasteful number, since it uses less digits than its factorization.

64064442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13998.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 64064442 is about 8004.0266116499. The cubic root of 64064442 is about 400.1342091314.

The spelling of 64064442 in words is "sixty-four million, sixty-four thousand, four hundred forty-two".