64742422 has 8 divisors (see below), whose sum is σ = 97538400. Its totient is φ = 32229624.

The previous prime is 64742417. The next prime is 64742423. The reversal of 64742422 is 22424746.

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 (64742423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70222 + ... + 71137.

It is an arithmetic number, because the mean of its divisors is an integer number (12192300).

Almost surely, 2^64742422 is an apocalyptic number.

64742422 is a deficient number, since it is larger than the sum of its proper divisors (32795978).

64742422 is a wasteful number, since it uses less digits than its factorization.

64742422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141590.

The product of its digits is 21504, while the sum is 31.

The square root of 64742422 is about 8046.2675819289. The cubic root of 64742422 is about 401.5407699496.

The spelling of 64742422 in words is "sixty-four million, seven hundred forty-two thousand, four hundred twenty-two".