489745629 has 8 divisors (see below), whose sum is σ = 725549120. Its totient is φ = 326497068.

The previous prime is 489745621. The next prime is 489745631. The reversal of 489745629 is 926547984.

489745629 is a `hidden beast` number, since 4 + 8 + 9 + 7 + 4 + 5 + 629 = 666.

It is not a de Polignac number, because 489745629 - 2³ = 489745621 is a prime.

It is a super-2 number, since 2×489745629² = 479701562249211282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489745621) 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 7 ways as a sum of consecutive naturals, for example, 9069337 + ... + 9069390.

It is an arithmetic number, because the mean of its divisors is an integer number (90693640).

Almost surely, 2^489745629 is an apocalyptic number.

It is an amenable number.

489745629 is a deficient number, since it is larger than the sum of its proper divisors (235803491).

489745629 is a wasteful number, since it uses less digits than its factorization.

489745629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18138736 (or 18138730 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 489745629 is about 22130.1972200882. The cubic root of 489745629 is about 788.2370713640.

The spelling of 489745629 in words is "four hundred eighty-nine million, seven hundred forty-five thousand, six hundred twenty-nine".