461628890 has 8 divisors (see below), whose sum is σ = 830932020. Its totient is φ = 184651552.

The previous prime is 461628889. The next prime is 461628949. The reversal of 461628890 is 98826164.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 376010881 + 85618009 = 19391^2 + 9253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23081435 + ... + 23081454.

Almost surely, 2^461628890 is an apocalyptic number.

461628890 is a deficient number, since it is larger than the sum of its proper divisors (369303130).

461628890 is a wasteful number, since it uses less digits than its factorization.

461628890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46162896.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 461628890 is about 21485.5507260112. The cubic root of 461628890 is about 772.8543578712.

The spelling of 461628890 in words is "four hundred sixty-one million, six hundred twenty-eight thousand, eight hundred ninety".