461855538 has 12 divisors (see below), whose sum is σ = 1000687038. Its totient is φ = 153951840.

The previous prime is 461855531. The next prime is 461855539. The reversal of 461855538 is 835558164.

461855538 is a `hidden beast` number, since 4 + 61 + 8 + 55 + 538 = 666.

It can be written as a sum of positive squares in only one way, i.e., 406546569 + 55308969 = 20163^2 + 7437^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 461855493 and 461855502.

It is not an unprimeable number, because it can be changed into a prime (461855531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12829303 + ... + 12829338.

Almost surely, 2^461855538 is an apocalyptic number.

461855538 is an abundant number, since it is smaller than the sum of its proper divisors (538831500).

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

461855538 is a wasteful number, since it uses less digits than its factorization.

461855538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25658649 (or 25658646 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 461855538 is about 21490.8245072170. The cubic root of 461855538 is about 772.9808210966.

The spelling of 461855538 in words is "four hundred sixty-one million, eight hundred fifty-five thousand, five hundred thirty-eight".