73421944 has 16 divisors (see below), whose sum is σ = 137768400. Its totient is φ = 36683712.

The previous prime is 73421927. The next prime is 73421951. The reversal of 73421944 is 44912437.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12292 + ... + 17260.

It is an arithmetic number, because the mean of its divisors is an integer number (8610525).

Almost surely, 2^73421944 is an apocalyptic number.

It is an amenable number.

73421944 is a deficient number, since it is larger than the sum of its proper divisors (64346456).

73421944 is a wasteful number, since it uses less digits than its factorization.

73421944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822 (or 6818 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 73421944 is about 8568.6605721081. The cubic root of 73421944 is about 418.7376001675.

The spelling of 73421944 in words is "seventy-three million, four hundred twenty-one thousand, nine hundred forty-four".