64067044 has 12 divisors (see below), whose sum is σ = 112243068. Its totient is φ = 31997600.

The previous prime is 64067041. The next prime is 64067071. The reversal of 64067044 is 44076046.

It can be written as a sum of positive squares in 2 ways, for example, as 53582400 + 10484644 = 7320^2 + 3238^2 .

It is a super-2 number, since 2×64067044² = 8209172253795872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64066997 and 64067015.

It is not an unprimeable number, because it can be changed into a prime (64067041) 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, 4747 + ... + 12274.

It is an arithmetic number, because the mean of its divisors is an integer number (9353589).

Almost surely, 2^64067044 is an apocalyptic number.

It is an amenable number.

64067044 is a deficient number, since it is larger than the sum of its proper divisors (48176024).

64067044 is a wasteful number, since it uses less digits than its factorization.

64067044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17966 (or 17964 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 64067044 is about 8004.1891531872. The cubic root of 64067044 is about 400.1396262556.

The spelling of 64067044 in words is "sixty-four million, sixty-seven thousand, forty-four".