440252347 has 4 divisors (see below), whose sum is σ = 441203680. Its totient is φ = 439301016.

The previous prime is 440252299. The next prime is 440252369. The reversal of 440252347 is 743252044.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440252347 - 2¹⁹ = 439728059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440252387) 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, 474972 + ... + 475897.

It is an arithmetic number, because the mean of its divisors is an integer number (110300920).

Almost surely, 2^440252347 is an apocalyptic number.

440252347 is a deficient number, since it is larger than the sum of its proper divisors (951333).

440252347 is an equidigital number, since it uses as much as digits as its factorization.

440252347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951332.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 440252347 is about 20982.1911868136. The cubic root of 440252347 is about 760.7358679466.

The spelling of 440252347 in words is "four hundred forty million, two hundred fifty-two thousand, three hundred forty-seven".