460000021 has 8 divisors (see below), whose sum is σ = 508773944. Its totient is φ = 413138880.

The previous prime is 460000019. The next prime is 460000043. The reversal of 460000021 is 120000064.

It can be written as a sum of positive squares in 4 ways, for example, as 144937521 + 315062500 = 12039^2 + 17750^2 .

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 460000021 - 2¹ = 460000019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 459999956 and 460000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (460006021) 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, 477690 + ... + 478651.

It is an arithmetic number, because the mean of its divisors is an integer number (63596743).

Almost surely, 2^460000021 is an apocalyptic number.

It is an amenable number.

460000021 is a deficient number, since it is larger than the sum of its proper divisors (48773923).

460000021 is a wasteful number, since it uses less digits than its factorization.

460000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956391.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 460000021 is about 21447.6110790922. The cubic root of 460000021 is about 771.9442746831.

Adding to 460000021 its reverse (120000064), we get a palindrome (580000085).

The spelling of 460000021 in words is "four hundred sixty million, twenty-one", and thus it is an aban number.