461990 has 8 divisors (see below), whose sum is σ = 831600. Its totient is φ = 184792.

The previous prime is 461983. The next prime is 462013. The reversal of 461990 is 99164.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

461990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23090 + ... + 23109.

It is an arithmetic number, because the mean of its divisors is an integer number (103950).

2⁴⁶¹⁹⁹⁰ is an apocalyptic number.

461990 is a deficient number, since it is larger than the sum of its proper divisors (369610).

461990 is a wasteful number, since it uses less digits than its factorization.

461990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46206.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 461990 is about 679.6984625553. The cubic root of 461990 is about 77.3055827568.

The spelling of 461990 in words is "four hundred sixty-one thousand, nine hundred ninety".