440254213 has 4 divisors (see below), whose sum is σ = 503147680. Its totient is φ = 377360748.

The previous prime is 440254207. The next prime is 440254229. The reversal of 440254213 is 312452044.

It is a happy number.

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 440254213 - 2⁹ = 440253701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440258213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31446723 + ... + 31446736.

It is an arithmetic number, because the mean of its divisors is an integer number (125786920).

Almost surely, 2^440254213 is an apocalyptic number.

It is an amenable number.

440254213 is a deficient number, since it is larger than the sum of its proper divisors (62893467).

440254213 is an equidigital number, since it uses as much as digits as its factorization.

440254213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62893466.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 440254213 is about 20982.2356530471. The cubic root of 440254213 is about 760.7369427325.

The spelling of 440254213 in words is "four hundred forty million, two hundred fifty-four thousand, two hundred thirteen".