72235229 has 16 divisors (see below), whose sum is σ = 80117376. Its totient is φ = 64584000.

The previous prime is 72235213. The next prime is 72235291. The reversal of 72235229 is 92253227.

It is a cyclic number.

It is not a de Polignac number, because 72235229 - 2⁴ = 72235213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72235195 and 72235204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72235129) 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, 260639 + ... + 260915.

It is an arithmetic number, because the mean of its divisors is an integer number (5007336).

Almost surely, 2^72235229 is an apocalyptic number.

It is an amenable number.

72235229 is a deficient number, since it is larger than the sum of its proper divisors (7882147).

72235229 is a wasteful number, since it uses less digits than its factorization.

72235229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596.

The product of its digits is 15120, while the sum is 32.

The square root of 72235229 is about 8499.1310732333. The cubic root of 72235229 is about 416.4693240066.

The spelling of 72235229 in words is "seventy-two million, two hundred thirty-five thousand, two hundred twenty-nine".