461386820 has 24 divisors (see below), whose sum is σ = 974332800. Its totient is φ = 183522272.

The previous prime is 461386801. The next prime is 461386829. The reversal of 461386820 is 28683164.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (461386829) 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, 60860 + ... + 68019.

It is an arithmetic number, because the mean of its divisors is an integer number (40597200).

Almost surely, 2^461386820 is an apocalyptic number.

It is an amenable number.

461386820 is an abundant number, since it is smaller than the sum of its proper divisors (512945980).

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

461386820 is a wasteful number, since it uses less digits than its factorization.

461386820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129067 (or 129065 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 461386820 is about 21479.9166665050. The cubic root of 461386820 is about 772.7192438801.

The spelling of 461386820 in words is "four hundred sixty-one million, three hundred eighty-six thousand, eight hundred twenty".