64389242 has 16 divisors (see below), whose sum is σ = 98122752. Its totient is φ = 31684800.

The previous prime is 64389209. The next prime is 64389257. The reversal of 64389242 is 24298346.

It is a happy number.

64389242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64389196 and 64389205.

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, 55367 + ... + 56517.

It is an arithmetic number, because the mean of its divisors is an integer number (6132672).

Almost surely, 2^64389242 is an apocalyptic number.

64389242 is a deficient number, since it is larger than the sum of its proper divisors (33733510).

64389242 is a wasteful number, since it uses less digits than its factorization.

64389242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573.

The product of its digits is 82944, while the sum is 38.

The square root of 64389242 is about 8024.2907474742. The cubic root of 64389242 is about 400.8092823842.

The spelling of 64389242 in words is "sixty-four million, three hundred eighty-nine thousand, two hundred forty-two".