64040330 has 16 divisors (see below), whose sum is σ = 117954144. Its totient is φ = 25020240.

The previous prime is 64040329. The next prime is 64040341. The reversal of 64040330 is 3304046.

It is a happy number.

64040330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 7 ways as a sum of consecutive naturals, for example, 74036 + ... + 74895.

It is an arithmetic number, because the mean of its divisors is an integer number (7372134).

Almost surely, 2^64040330 is an apocalyptic number.

64040330 is a deficient number, since it is larger than the sum of its proper divisors (53913814).

64040330 is a wasteful number, since it uses less digits than its factorization.

64040330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148981.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 64040330 is about 8002.5202280282. The cubic root of 64040330 is about 400.0840031908.

Adding to 64040330 its reverse (3304046), we get a palindrome (67344376).

The spelling of 64040330 in words is "sixty-four million, forty thousand, three hundred thirty".