73303642 has 4 divisors (see below), whose sum is σ = 109955466. Its totient is φ = 36651820.

The previous prime is 73303621. The next prime is 73303649. The reversal of 73303642 is 24630337.

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

It can be written as a sum of positive squares in only one way, i.e., 73119601 + 184041 = 8551^2 + 429^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73303642.

It is not an unprimeable number, because it can be changed into a prime (73303649) 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 as a sum of consecutive naturals, namely, 18325909 + ... + 18325912.

Almost surely, 2^73303642 is an apocalyptic number.

73303642 is a deficient number, since it is larger than the sum of its proper divisors (36651824).

73303642 is a wasteful number, since it uses less digits than its factorization.

73303642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36651823.

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 73303642 is about 8561.7546098916. The cubic root of 73303642 is about 418.5125805858.

Adding to 73303642 its reverse (24630337), we get a palindrome (97933979).

The spelling of 73303642 in words is "seventy-three million, three hundred three thousand, six hundred forty-two".