73944149 has 12 divisors (see below), whose sum is σ = 78045996. Its totient is φ = 70046592.

The previous prime is 73944127. The next prime is 73944151. The reversal of 73944149 is 94144937.

It can be written as a sum of positive squares in 2 ways, for example, as 23107249 + 50836900 = 4807^2 + 7130^2 .

It is not a de Polignac number, because 73944149 - 2¹⁶ = 73878613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73940149) 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 11 ways as a sum of consecutive naturals, for example, 59159 + ... + 60395.

It is an arithmetic number, because the mean of its divisors is an integer number (6503833).

Almost surely, 2^73944149 is an apocalyptic number.

It is an amenable number.

73944149 is a deficient number, since it is larger than the sum of its proper divisors (4101847).

73944149 is a wasteful number, since it uses less digits than its factorization.

73944149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1373 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 73944149 is about 8599.0783808499. The cubic root of 73944149 is about 419.7279965948.

The spelling of 73944149 in words is "seventy-three million, nine hundred forty-four thousand, one hundred forty-nine".