64185742 has 8 divisors (see below), whose sum is σ = 96337800. Its totient is φ = 32073144.

The previous prime is 64185707. The next prime is 64185757. The reversal of 64185742 is 24758146.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5392 + ... + 12547.

It is an arithmetic number, because the mean of its divisors is an integer number (12042225).

Almost surely, 2^64185742 is an apocalyptic number.

64185742 is a deficient number, since it is larger than the sum of its proper divisors (32152058).

64185742 is a wasteful number, since it uses less digits than its factorization.

64185742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19730.

The product of its digits is 53760, while the sum is 37.

The square root of 64185742 is about 8011.6004643267. The cubic root of 64185742 is about 400.3865887525.

The spelling of 64185742 in words is "sixty-four million, one hundred eighty-five thousand, seven hundred forty-two".