465405021 has 48 divisors (see below), whose sum is σ = 726922560. Its totient is φ = 297198720.

The previous prime is 465404999. The next prime is 465405041. The reversal of 465405021 is 120504564.

465405021 is a `hidden beast` number, since 4 + 654 + 0 + 5 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 465405021 - 2¹³ = 465396829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465405041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1486761 + ... + 1487073.

It is an arithmetic number, because the mean of its divisors is an integer number (15144220).

Almost surely, 2^465405021 is an apocalyptic number.

It is an amenable number.

465405021 is a deficient number, since it is larger than the sum of its proper divisors (261517539).

465405021 is a wasteful number, since it uses less digits than its factorization.

465405021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 465405021 is about 21573.2478083389. The cubic root of 465405021 is about 774.9559578163.

Adding to 465405021 its reverse (120504564), we get a palindrome (585909585).

The spelling of 465405021 in words is "four hundred sixty-five million, four hundred five thousand, twenty-one".