73000032 has 48 divisors (see below), whose sum is σ = 219002112. Its totient is φ = 20856960.

The previous prime is 73000019. The next prime is 73000043. The reversal of 73000032 is 23000037.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 72999975 and 73000020.

It is a congruent number.

It is an unprimeable number.

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, 53644 + ... + 54987.

It is an arithmetic number, because the mean of its divisors is an integer number (4562544).

Almost surely, 2^73000032 is an apocalyptic number.

It is an amenable number.

73000032 is an abundant number, since it is smaller than the sum of its proper divisors (146002080).

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

73000032 is a wasteful number, since it uses less digits than its factorization.

73000032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108651 (or 108643 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 15.

The square root of 73000032 is about 8544.0056179757. The cubic root of 73000032 is about 417.9339807061.

Adding to 73000032 its reverse (23000037), we get a palindrome (96000069).

The spelling of 73000032 in words is "seventy-three million, thirty-two", and thus it is an aban number and an uban number.