73206432 has 72 divisors (see below), whose sum is σ = 224206164. Its totient is φ = 22523904.

The previous prime is 73206379. The next prime is 73206451. The reversal of 73206432 is 23460237.

It can be written as a sum of positive squares in 2 ways, for example, as 73205136 + 1296 = 8556^2 + 36^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 73206396 and 73206405.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6033 + ... + 13520.

Almost surely, 2^73206432 is an apocalyptic number.

73206432 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

73206432 is an abundant number, since it is smaller than the sum of its proper divisors (150999732).

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

73206432 is a wasteful number, since it uses less digits than its factorization.

73206432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19582 (or 19571 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 73206432 is about 8556.0757359902. The cubic root of 73206432 is about 418.3274983534.

Adding to 73206432 its reverse (23460237), we get a palindrome (96666669).

The spelling of 73206432 in words is "seventy-three million, two hundred six thousand, four hundred thirty-two".