489941551 has 8 divisors (see below), whose sum is σ = 539478144. Its totient is φ = 441237720.

The previous prime is 489941539. The next prime is 489941567. The reversal of 489941551 is 155149984.

It is a happy number.

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

It is not a de Polignac number, because 489941551 - 2⁵ = 489941519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489941521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206955 + ... + 209308.

It is an arithmetic number, because the mean of its divisors is an integer number (67434768).

Almost surely, 2^489941551 is an apocalyptic number.

489941551 is a deficient number, since it is larger than the sum of its proper divisors (49536593).

489941551 is a wasteful number, since it uses less digits than its factorization.

489941551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416381.

The product of its digits is 259200, while the sum is 46.

The square root of 489941551 is about 22134.6233534705. The cubic root of 489941551 is about 788.3421683677.

The spelling of 489941551 in words is "four hundred eighty-nine million, nine hundred forty-one thousand, five hundred fifty-one".