461601988 has 6 divisors (see below), whose sum is σ = 807803486. Its totient is φ = 230800992.

The previous prime is 461601983. The next prime is 461601989. The reversal of 461601988 is 889106164.

It can be written as a sum of positive squares in only one way, i.e., 242798724 + 218803264 = 15582^2 + 14792^2 .

It is not an unprimeable number, because it can be changed into a prime (461601983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57700245 + ... + 57700252.

Almost surely, 2^461601988 is an apocalyptic number.

It is an amenable number.

461601988 is a deficient number, since it is larger than the sum of its proper divisors (346201498).

461601988 is a wasteful number, since it uses less digits than its factorization.

461601988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115400501 (or 115400499 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 461601988 is about 21484.9246682412. The cubic root of 461601988 is about 772.8393445620.

The spelling of 461601988 in words is "four hundred sixty-one million, six hundred one thousand, nine hundred eighty-eight".