64169338 has 4 divisors (see below), whose sum is σ = 96254010. Its totient is φ = 32084668.

The previous prime is 64169323. The next prime is 64169363. The reversal of 64169338 is 83396146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53626329 + 10543009 = 7323^2 + 3247^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 64169338.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16042333 + ... + 16042336.

Almost surely, 2^64169338 is an apocalyptic number.

64169338 is a deficient number, since it is larger than the sum of its proper divisors (32084672).

64169338 is a wasteful number, since it uses less digits than its factorization.

64169338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32084671.

The product of its digits is 93312, while the sum is 40.

The square root of 64169338 is about 8010.5766334266. The cubic root of 64169338 is about 400.3524768090.

The spelling of 64169338 in words is "sixty-four million, one hundred sixty-nine thousand, three hundred thirty-eight".