72233011 has 8 divisors (see below), whose sum is σ = 74045664. Its totient is φ = 70437120.

The previous prime is 72232981. The next prime is 72233027. The reversal of 72233011 is 11033227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72233011 - 2¹⁹ = 71708723 is a prime.

It is a super-2 number, since 2×72233011² = 10435215756252242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72233011.

It is not an unprimeable number, because it can be changed into a prime (72233071) by changing a digit.

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, 4771 + ... + 12931.

It is an arithmetic number, because the mean of its divisors is an integer number (9255708).

Almost surely, 2^72233011 is an apocalyptic number.

72233011 is a deficient number, since it is larger than the sum of its proper divisors (1812653).

72233011 is a wasteful number, since it uses less digits than its factorization.

72233011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8381.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 72233011 is about 8499.0005883045. Note that the first 3 decimals coincide. The cubic root of 72233011 is about 416.4650613662.

Adding to 72233011 its reverse (11033227), we get a palindrome (83266238).

It can be divided in two parts, 722 and 33011, that added together give a palindrome (33733).

The spelling of 72233011 in words is "seventy-two million, two hundred thirty-three thousand, eleven".