468840809 has 8 divisors (see below), whose sum is σ = 498457152. Its totient is φ = 439993840.

The previous prime is 468840791. The next prime is 468840817. The reversal of 468840809 is 908048864.

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 468840809 - 2¹² = 468836713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (468840109) 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, 191087 + ... + 193524.

It is an arithmetic number, because the mean of its divisors is an integer number (62307144).

Almost surely, 2^468840809 is an apocalyptic number.

It is an amenable number.

468840809 is a deficient number, since it is larger than the sum of its proper divisors (29616343).

468840809 is a wasteful number, since it uses less digits than its factorization.

468840809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384687.

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 468840809 is about 21652.7321370768. The cubic root of 468840809 is about 776.8582858587.

The spelling of 468840809 in words is "four hundred sixty-eight million, eight hundred forty thousand, eight hundred nine".