461644506 has 24 divisors (see below), whose sum is σ = 1012284000. Its totient is φ = 152027016.

The previous prime is 461644499. The next prime is 461644511. The reversal of 461644506 is 605446164.

461644506 is a `hidden beast` number, since 4 + 6 + 1 + 644 + 5 + 0 + 6 = 666.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 153006 + ... + 155993.

It is an arithmetic number, because the mean of its divisors is an integer number (42178500).

Almost surely, 2^461644506 is an apocalyptic number.

461644506 is an abundant number, since it is smaller than the sum of its proper divisors (550639494).

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

461644506 is a wasteful number, since it uses less digits than its factorization.

461644506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309090 (or 309087 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 461644506 is about 21485.9141299597. The cubic root of 461644506 is about 772.8630724887.

The spelling of 461644506 in words is "four hundred sixty-one million, six hundred forty-four thousand, five hundred six".