64682438 has 8 divisors (see below), whose sum is σ = 99646032. Its totient is φ = 31467096.

The previous prime is 64682407. The next prime is 64682447. The reversal of 64682438 is 83428646.

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

It is a junction number, because it is equal to n+sod(n) for n = 64682395 and 64682404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436970 + ... + 437117.

It is an arithmetic number, because the mean of its divisors is an integer number (12455754).

Almost surely, 2^64682438 is an apocalyptic number.

64682438 is a deficient number, since it is larger than the sum of its proper divisors (34963594).

64682438 is a wasteful number, since it uses less digits than its factorization.

64682438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874126.

The product of its digits is 221184, while the sum is 41.

The square root of 64682438 is about 8042.5392756268. The cubic root of 64682438 is about 401.4167221552.

The spelling of 64682438 in words is "sixty-four million, six hundred eighty-two thousand, four hundred thirty-eight".