489409901 has 8 divisors (see below), whose sum is σ = 491568000. Its totient is φ = 487257120.

The previous prime is 489409873. The next prime is 489409903. The reversal of 489409901 is 109904984.

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

It is a cyclic number.

It is not a de Polignac number, because 489409901 - 2¹⁰ = 489408877 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 (489409903) 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, 396956 + ... + 398186.

It is an arithmetic number, because the mean of its divisors is an integer number (61446000).

Almost surely, 2^489409901 is an apocalyptic number.

It is an amenable number.

489409901 is a deficient number, since it is larger than the sum of its proper divisors (2158099).

489409901 is a wasteful number, since it uses less digits than its factorization.

489409901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 489409901 is about 22122.6106280430. The cubic root of 489409901 is about 788.0569140654.

The spelling of 489409901 in words is "four hundred eighty-nine million, four hundred nine thousand, nine hundred one".