64045892 has 24 divisors (see below), whose sum is σ = 117591936. Its totient is φ = 30463488.

The previous prime is 64045879. The next prime is 64045897. The reversal of 64045892 is 29854046.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (64045897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15953 + ... + 19559.

It is an arithmetic number, because the mean of its divisors is an integer number (4899664).

Almost surely, 2^64045892 is an apocalyptic number.

It is an amenable number.

64045892 is a deficient number, since it is larger than the sum of its proper divisors (53546044).

64045892 is a wasteful number, since it uses less digits than its factorization.

64045892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827 (or 3825 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 64045892 is about 8002.8677360056. The cubic root of 64045892 is about 400.0955854900.

The spelling of 64045892 in words is "sixty-four million, forty-five thousand, eight hundred ninety-two".