64147338 has 12 divisors (see below), whose sum is σ = 138985938. Its totient is φ = 21382440.

The previous prime is 64147313. The next prime is 64147351. The reversal of 64147338 is 83374146.

64147338 is a `hidden beast` number, since 641 + 4 + 7 + 3 + 3 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45198729 + 18948609 = 6723^2 + 4353^2 .

It is a super-2 number, since 2×64147338² = 8229761944972488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1781853 + ... + 1781888.

Almost surely, 2^64147338 is an apocalyptic number.

64147338 is an abundant number, since it is smaller than the sum of its proper divisors (74838600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64147338 is a wasteful number, since it uses less digits than its factorization.

64147338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563749 (or 3563746 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 64147338 is about 8009.2033311685. The cubic root of 64147338 is about 400.3067189153.

The spelling of 64147338 in words is "sixty-four million, one hundred forty-seven thousand, three hundred thirty-eight".