64045990 has 8 divisors (see below), whose sum is σ = 115282800. Its totient is φ = 25618392.

The previous prime is 64045967. The next prime is 64045997. The reversal of 64045990 is 9954046.

64045990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64045997) 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, 3202290 + ... + 3202309.

It is an arithmetic number, because the mean of its divisors is an integer number (14410350).

Almost surely, 2^64045990 is an apocalyptic number.

64045990 is a deficient number, since it is larger than the sum of its proper divisors (51236810).

64045990 is a wasteful number, since it uses less digits than its factorization.

64045990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404606.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 64045990 is about 8002.8738588085. The cubic root of 64045990 is about 400.0957895591.

The spelling of 64045990 in words is "sixty-four million, forty-five thousand, nine hundred ninety".