72300032 has 40 divisors (see below), whose sum is σ = 165104016. Its totient is φ = 30984192.

The previous prime is 72300023. The next prime is 72300037. The reversal of 72300032 is 23000327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72300037) 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, 6503 + ... + 13670.

Almost surely, 2^72300032 is an apocalyptic number.

It is an amenable number.

72300032 is an abundant number, since it is smaller than the sum of its proper divisors (92803984).

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

72300032 is an equidigital number, since it uses as much as digits as its factorization.

72300032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20198 (or 20182 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 72300032 is about 8502.9425494943. The cubic root of 72300032 is about 416.5938264849.

Adding to 72300032 its reverse (23000327), we get a palindrome (95300359).

The spelling of 72300032 in words is "seventy-two million, three hundred thousand, thirty-two".