489551401 has 4 divisors (see below), whose sum is σ = 489888400. Its totient is φ = 489214404.

The previous prime is 489551399. The next prime is 489551423. The reversal of 489551401 is 104155984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 489551401 - 2¹ = 489551399 is a prime.

It is a super-3 number, since 3×489551401³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489551801) 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 3 ways as a sum of consecutive naturals, for example, 166311 + ... + 169228.

It is an arithmetic number, because the mean of its divisors is an integer number (122472100).

Almost surely, 2^489551401 is an apocalyptic number.

It is an amenable number.

489551401 is a deficient number, since it is larger than the sum of its proper divisors (336999).

489551401 is a wasteful number, since it uses less digits than its factorization.

489551401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336998.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 489551401 is about 22125.8084824035. The cubic root of 489551401 is about 788.1328553899.

The spelling of 489551401 in words is "four hundred eighty-nine million, five hundred fifty-one thousand, four hundred one".