461221236 has 48 divisors (see below), whose sum is σ = 1366583680. Its totient is φ = 131777280.

The previous prime is 461221217. The next prime is 461221273. The reversal of 461221236 is 632122164.

461221236 is a `hidden beast` number, since 4 + 612 + 2 + 12 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304285 + ... + 305796.

Almost surely, 2^461221236 is an apocalyptic number.

It is an amenable number.

461221236 is an abundant number, since it is smaller than the sum of its proper divisors (905362444).

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

461221236 is a wasteful number, since it uses less digits than its factorization.

461221236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610101 (or 610093 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 461221236 is about 21476.0619295065. The cubic root of 461221236 is about 772.6267941559.

The spelling of 461221236 in words is "four hundred sixty-one million, two hundred twenty-one thousand, two hundred thirty-six".