489950143 has 4 divisors (see below), whose sum is σ = 490281120. Its totient is φ = 489619168.

The previous prime is 489950129. The next prime is 489950177. The reversal of 489950143 is 341059984.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 489950143 - 2¹³ = 489941951 is a prime.

It is a super-2 number, since 2×489950143² = 480102285251440898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 489950143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489950113) by changing a digit.

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, 163258 + ... + 166231.

It is an arithmetic number, because the mean of its divisors is an integer number (122570280).

Almost surely, 2^489950143 is an apocalyptic number.

489950143 is a deficient number, since it is larger than the sum of its proper divisors (330977).

489950143 is a wasteful number, since it uses less digits than its factorization.

489950143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330976.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 489950143 is about 22134.8174376930. The cubic root of 489950143 is about 788.3467766700.

The spelling of 489950143 in words is "four hundred eighty-nine million, nine hundred fifty thousand, one hundred forty-three".