73240733 has 4 divisors (see below), whose sum is σ = 73312668. Its totient is φ = 73168800.

The previous prime is 73240729. The next prime is 73240759. The reversal of 73240733 is 33704237.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70593604 + 2647129 = 8402^2 + 1627^2 .

It is a cyclic number.

It is not a de Polignac number, because 73240733 - 2² = 73240729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73240696 and 73240705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73240133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34418 + ... + 36483.

It is an arithmetic number, because the mean of its divisors is an integer number (18328167).

Almost surely, 2^73240733 is an apocalyptic number.

It is an amenable number.

73240733 is a deficient number, since it is larger than the sum of its proper divisors (71935).

73240733 is a wasteful number, since it uses less digits than its factorization.

73240733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71934.

The product of its (nonzero) digits is 10584, while the sum is 29.

The square root of 73240733 is about 8558.0799832673. The cubic root of 73240733 is about 418.3928241753.

The spelling of 73240733 in words is "seventy-three million, two hundred forty thousand, seven hundred thirty-three".