66226232 has 8 divisors (see below), whose sum is σ = 124174200. Its totient is φ = 33113112.

The previous prime is 66226231. The next prime is 66226301. The reversal of 66226232 is 23262266.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 66226195 and 66226204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66226231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4139132 + ... + 4139147.

It is an arithmetic number, because the mean of its divisors is an integer number (15521775).

Almost surely, 2^66226232 is an apocalyptic number.

It is an amenable number.

66226232 is a deficient number, since it is larger than the sum of its proper divisors (57947968).

66226232 is a wasteful number, since it uses less digits than its factorization.

66226232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8278285 (or 8278281 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

The square root of 66226232 is about 8137.9501104394. The cubic root of 66226232 is about 404.5852218496.

Adding to 66226232 its reverse (23262266), we get a palindrome (89488498).

The spelling of 66226232 in words is "sixty-six million, two hundred twenty-six thousand, two hundred thirty-two".