440212133 has 4 divisors (see below), whose sum is σ = 440452320. Its totient is φ = 439971948.

The previous prime is 440212081. The next prime is 440212147. The reversal of 440212133 is 331212044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440212133 - 2¹² = 440208037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440212193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117323 + ... + 121016.

It is an arithmetic number, because the mean of its divisors is an integer number (110113080).

Almost surely, 2^440212133 is an apocalyptic number.

It is an amenable number.

440212133 is a deficient number, since it is larger than the sum of its proper divisors (240187).

440212133 is a wasteful number, since it uses less digits than its factorization.

440212133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240186.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 440212133 is about 20981.2328760728. The cubic root of 440212133 is about 760.7127045919.

Adding to 440212133 its reverse (331212044), we get a palindrome (771424177).

The spelling of 440212133 in words is "four hundred forty million, two hundred twelve thousand, one hundred thirty-three".