73644068 has 24 divisors (see below), whose sum is σ = 142394112. Its totient is φ = 33148544.

The previous prime is 73644047. The next prime is 73644071. The reversal of 73644068 is 86044637.

It is a happy number.

It is a super-4 number, since 4×73644068⁴ (a number of 33 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21980 + ... + 25107.

It is an arithmetic number, because the mean of its divisors is an integer number (5933088).

Almost surely, 2^73644068 is an apocalyptic number.

It is an amenable number.

73644068 is a deficient number, since it is larger than the sum of its proper divisors (68750044).

73644068 is a wasteful number, since it uses less digits than its factorization.

73644068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47131 (or 47129 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 73644068 is about 8581.6122028439. The cubic root of 73644068 is about 419.1594451303.

The spelling of 73644068 in words is "seventy-three million, six hundred forty-four thousand, sixty-eight".