440840797 has 8 divisors (see below), whose sum is σ = 443791872. Its totient is φ = 437896800.

The previous prime is 440840779. The next prime is 440840837. The reversal of 440840797 is 797048044.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440840797 - 2⁷ = 440840669 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 (440840707) 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, 184273 + ... + 186649.

It is an arithmetic number, because the mean of its divisors is an integer number (55473984).

Almost surely, 2^440840797 is an apocalyptic number.

It is an amenable number.

440840797 is a deficient number, since it is larger than the sum of its proper divisors (2951075).

440840797 is a wasteful number, since it uses less digits than its factorization.

440840797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 440840797 is about 20996.2091102180. The cubic root of 440840797 is about 761.0746552537.

The spelling of 440840797 in words is "four hundred forty million, eight hundred forty thousand, seven hundred ninety-seven".