468840021 has 8 divisors (see below), whose sum is σ = 673206240. Its totient is φ = 288516912.

The previous prime is 468840017. The next prime is 468840023. The reversal of 468840021 is 120048864.

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

It is not a de Polignac number, because 468840021 - 2² = 468840017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (468840023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6010731 + ... + 6010808.

It is an arithmetic number, because the mean of its divisors is an integer number (84150780).

Almost surely, 2^468840021 is an apocalyptic number.

It is an amenable number.

468840021 is a deficient number, since it is larger than the sum of its proper divisors (204366219).

468840021 is a wasteful number, since it uses less digits than its factorization.

468840021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12021555.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 468840021 is about 21652.7139407512. The cubic root of 468840021 is about 776.8578506259.

Adding to 468840021 its reverse (120048864), we get a palindrome (588888885).

The spelling of 468840021 in words is "four hundred sixty-eight million, eight hundred forty thousand, twenty-one".