463440257 has 8 divisors (see below), whose sum is σ = 540915456. Its totient is φ = 388782432.

The previous prime is 463440253. The next prime is 463440259. The reversal of 463440257 is 752044364.

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 463440257 - 2² = 463440253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (463440253) 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, 703988 + ... + 704645.

It is an arithmetic number, because the mean of its divisors is an integer number (67614432).

Almost surely, 2^463440257 is an apocalyptic number.

463440257 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

463440257 is a deficient number, since it is larger than the sum of its proper divisors (77475199).

463440257 is a wasteful number, since it uses less digits than its factorization.

463440257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408687.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 463440257 is about 21527.6625995485. The cubic root of 463440257 is about 773.8638959492.

The spelling of 463440257 in words is "four hundred sixty-three million, four hundred forty thousand, two hundred fifty-seven".