461661740 has 12 divisors (see below), whose sum is σ = 969489696. Its totient is φ = 184664688.

The previous prime is 461661719. The next prime is 461661743. The reversal of 461661740 is 47166164.

It is a self number, because there is not a number n which added to its sum of digits gives 461661740.

It is not an unprimeable number, because it can be changed into a prime (461661743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11541524 + ... + 11541563.

It is an arithmetic number, because the mean of its divisors is an integer number (80790808).

Almost surely, 2^461661740 is an apocalyptic number.

It is an amenable number.

461661740 is an abundant number, since it is smaller than the sum of its proper divisors (507827956).

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

461661740 is a wasteful number, since it uses less digits than its factorization.

461661740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23083096 (or 23083094 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 461661740 is about 21486.3151796673. The cubic root of 461661740 is about 772.8726898142.

The spelling of 461661740 in words is "four hundred sixty-one million, six hundred sixty-one thousand, seven hundred forty".