73732090 has 8 divisors (see below), whose sum is σ = 132717780. Its totient is φ = 29492832.

The previous prime is 73732033. The next prime is 73732091. The reversal of 73732090 is 9023737.

It can be written as a sum of positive squares in 2 ways, for example, as 63536841 + 10195249 = 7971^2 + 3193^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (73732091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3686595 + ... + 3686614.

Almost surely, 2^73732090 is an apocalyptic number.

73732090 is a deficient number, since it is larger than the sum of its proper divisors (58985690).

73732090 is a wasteful number, since it uses less digits than its factorization.

73732090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373216.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 73732090 is about 8586.7391948283. The cubic root of 73732090 is about 419.3263767150.

The spelling of 73732090 in words is "seventy-three million, seven hundred thirty-two thousand, ninety".