73222736 has 10 divisors (see below), whose sum is σ = 141869082. Its totient is φ = 36611360.

The previous prime is 73222729. The next prime is 73222763. The reversal of 73222736 is 63722237.

It can be written as a sum of positive squares in only one way, i.e., 55950400 + 17272336 = 7480^2 + 4156^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2288195 + ... + 2288226.

Almost surely, 2^73222736 is an apocalyptic number.

It is an amenable number.

73222736 is a deficient number, since it is larger than the sum of its proper divisors (68646346).

73222736 is a wasteful number, since it uses less digits than its factorization.

73222736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576429 (or 4576423 counting only the distinct ones).

The product of its digits is 21168, while the sum is 32.

The square root of 73222736 is about 8557.0284561873. The cubic root of 73222736 is about 418.3585516597.

The spelling of 73222736 in words is "seventy-three million, two hundred twenty-two thousand, seven hundred thirty-six".