73500438 has 16 divisors (see below), whose sum is σ = 160364736. Its totient is φ = 22272840.

The previous prime is 73500431. The next prime is 73500461. The reversal of 73500438 is 83400537.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73500431) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 556756 + ... + 556887.

It is an arithmetic number, because the mean of its divisors is an integer number (10022796).

Almost surely, 2^73500438 is an apocalyptic number.

73500438 is an abundant number, since it is smaller than the sum of its proper divisors (86864298).

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

73500438 is a wasteful number, since it uses less digits than its factorization.

73500438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113659.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 73500438 is about 8573.2396443818. The cubic root of 73500438 is about 418.8867684831.

Subtracting 73500438 from its reverse (83400537), we obtain a palindrome (9900099).

The spelling of 73500438 in words is "seventy-three million, five hundred thousand, four hundred thirty-eight".