72023500 has 48 divisors (see below), whose sum is σ = 158165280. Its totient is φ = 28651200.

The previous prime is 72023489. The next prime is 72023507. The reversal of 72023500 is 532027.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72023507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141246 + ... + 141754.

It is an arithmetic number, because the mean of its divisors is an integer number (3295110).

Almost surely, 2^72023500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72023500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79082640).

72023500 is an abundant number, since it is smaller than the sum of its proper divisors (86141780).

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

72023500 is a wasteful number, since it uses less digits than its factorization.

72023500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 72023500 is about 8486.6660120450. Note that the first 3 decimals coincide. The cubic root of 72023500 is about 416.0620207702.

Adding to 72023500 its reverse (532027), we get a palindrome (72555527).

The spelling of 72023500 in words is "seventy-two million, twenty-three thousand, five hundred".