73203138 has 24 divisors (see below), whose sum is σ = 160617600. Its totient is φ = 24091704.

The previous prime is 73203133. The next prime is 73203167. The reversal of 73203138 is 83130237.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73203133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24318 + ... + 27161.

It is an arithmetic number, because the mean of its divisors is an integer number (6692400).

Almost surely, 2^73203138 is an apocalyptic number.

73203138 is an abundant number, since it is smaller than the sum of its proper divisors (87414462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73203138 is a wasteful number, since it uses less digits than its factorization.

73203138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51566 (or 51563 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 73203138 is about 8555.8832390350. The cubic root of 73203138 is about 418.3212238981.

The spelling of 73203138 in words is "seventy-three million, two hundred three thousand, one hundred thirty-eight".