133440466 has 16 divisors (see below), whose sum is σ = 202323456. Its totient is φ = 66002976.

The previous prime is 133440407. The next prime is 133440467. The reversal of 133440466 is 664044331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (133440467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99895 + ... + 101221.

It is an arithmetic number, because the mean of its divisors is an integer number (12645216).

Almost surely, 2^133440466 is an apocalyptic number.

133440466 is a deficient number, since it is larger than the sum of its proper divisors (68882990).

133440466 is a wasteful number, since it uses less digits than its factorization.

133440466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 133440466 is about 11551.6434328627. The cubic root of 133440466 is about 511.0097462535.

Adding to 133440466 its reverse (664044331), we get a palindrome (797484797).

The spelling of 133440466 in words is "one hundred thirty-three million, four hundred forty thousand, four hundred sixty-six".