461461780 has 48 divisors (see below), whose sum is σ = 1071841680. Its totient is φ = 165777408.

The previous prime is 461461771. The next prime is 461461783. The reversal of 461461780 is 87164164.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4613904 + 456847876 = 2148^2 + 21374^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461461783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14365 + ... + 33604.

It is an arithmetic number, because the mean of its divisors is an integer number (22330035).

Almost surely, 2^461461780 is an apocalyptic number.

It is an amenable number.

461461780 is an abundant number, since it is smaller than the sum of its proper divisors (610379900).

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

461461780 is a wasteful number, since it uses less digits than its factorization.

461461780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48028 (or 48026 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 461461780 is about 21481.6614813659. The cubic root of 461461780 is about 772.7610886659.

It can be divided in two parts, 461461 and 780, that added together give a triangular number (462241 = T₉₆₁).

The spelling of 461461780 in words is "four hundred sixty-one million, four hundred sixty-one thousand, seven hundred eighty".