73643044 has 12 divisors (see below), whose sum is σ = 129056284. Its totient is φ = 36769824.

The previous prime is 73643041. The next prime is 73643081. The reversal of 73643044 is 44034637.

It can be written as a sum of positive squares in 2 ways, for example, as 61308900 + 12334144 = 7830^2 + 3512^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 73642997 and 73643015.

It is not an unprimeable number, because it can be changed into a prime (73643041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9627 + ... + 15490.

Almost surely, 2^73643044 is an apocalyptic number.

It is an amenable number.

73643044 is a deficient number, since it is larger than the sum of its proper divisors (55413240).

73643044 is a wasteful number, since it uses less digits than its factorization.

73643044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25854 (or 25852 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 73643044 is about 8581.5525401876. The cubic root of 73643044 is about 419.1575023566.

The spelling of 73643044 in words is "seventy-three million, six hundred forty-three thousand, forty-four".