489502261 has 8 divisors (see below), whose sum is σ = 514463040. Its totient is φ = 464848032.

The previous prime is 489502253. The next prime is 489502283. The reversal of 489502261 is 162205984.

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

It is not a de Polignac number, because 489502261 - 2³ = 489502253 is a prime.

It is a super-2 number, since 2×489502261² = 479224927048224242, 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 489502261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489502231) 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, 73360 + ... + 79753.

It is an arithmetic number, because the mean of its divisors is an integer number (64307880).

Almost surely, 2^489502261 is an apocalyptic number.

It is an amenable number.

489502261 is a deficient number, since it is larger than the sum of its proper divisors (24960779).

489502261 is a wasteful number, since it uses less digits than its factorization.

489502261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153275.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 489502261 is about 22124.6979866393. The cubic root of 489502261 is about 788.1064842099.

The spelling of 489502261 in words is "four hundred eighty-nine million, five hundred two thousand, two hundred sixty-one".