461530618 has 4 divisors (see below), whose sum is σ = 692295930. Its totient is φ = 230765308.

The previous prime is 461530583. The next prime is 461530649. The reversal of 461530618 is 816035164.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 415059129 + 46471489 = 20373^2 + 6817^2 .

It is a super-2 number, since 2×461530618² = 426021022702923848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115382653 + ... + 115382656.

Almost surely, 2^461530618 is an apocalyptic number.

461530618 is a deficient number, since it is larger than the sum of its proper divisors (230765312).

461530618 is a wasteful number, since it uses less digits than its factorization.

461530618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230765311.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 461530618 is about 21483.2636719843. The cubic root of 461530618 is about 772.7995119873.

The spelling of 461530618 in words is "four hundred sixty-one million, five hundred thirty thousand, six hundred eighteen".