461504420 has 24 divisors (see below), whose sum is σ = 1043710584. Its totient is φ = 170401536.

The previous prime is 461504371. The next prime is 461504429. The reversal of 461504420 is 24405164.

It can be written as a sum of positive squares in 4 ways, for example, as 39037504 + 422466916 = 6248^2 + 20554^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 461504420.

It is not an unprimeable number, because it can be changed into a prime (461504429) 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 7 ways as a sum of consecutive naturals, for example, 887249 + ... + 887768.

It is an arithmetic number, because the mean of its divisors is an integer number (43487941).

Almost surely, 2^461504420 is an apocalyptic number.

It is an amenable number.

461504420 is an abundant number, since it is smaller than the sum of its proper divisors (582206164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

461504420 is a wasteful number, since it uses less digits than its factorization.

461504420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775039 (or 1775037 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 461504420 is about 21482.6539328827. The cubic root of 461504420 is about 772.7848894943.

Adding to 461504420 its reverse (24405164), we get a palindrome (485909584).

The spelling of 461504420 in words is "four hundred sixty-one million, five hundred four thousand, four hundred twenty".