489899157 has 16 divisors (see below), whose sum is σ = 713856000. Its totient is φ = 296377200.

The previous prime is 489899143. The next prime is 489899159. The reversal of 489899157 is 751998984.

It is not a de Polignac number, because 489899157 - 2¹⁶ = 489833621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 489899157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489899159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5844 + ... + 31842.

It is an arithmetic number, because the mean of its divisors is an integer number (44616000).

Almost surely, 2^489899157 is an apocalyptic number.

It is an amenable number.

489899157 is a deficient number, since it is larger than the sum of its proper divisors (223956843).

489899157 is a wasteful number, since it uses less digits than its factorization.

489899157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26584.

The product of its digits is 6531840, while the sum is 60.

The square root of 489899157 is about 22133.6656927857. The cubic root of 489899157 is about 788.3194296404.

The spelling of 489899157 in words is "four hundred eighty-nine million, eight hundred ninety-nine thousand, one hundred fifty-seven".