489400357 has 4 divisors (see below), whose sum is σ = 498634380. Its totient is φ = 480166336.

The previous prime is 489400343. The next prime is 489400367. The reversal of 489400357 is 753004984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 418857156 + 70543201 = 20466^2 + 8399^2 .

It is a cyclic number.

It is not a de Polignac number, because 489400357 - 2¹¹ = 489398309 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 (489400337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4616932 + ... + 4617037.

It is an arithmetic number, because the mean of its divisors is an integer number (124658595).

Almost surely, 2^489400357 is an apocalyptic number.

It is an amenable number.

489400357 is a deficient number, since it is larger than the sum of its proper divisors (9234023).

489400357 is an equidigital number, since it uses as much as digits as its factorization.

489400357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9234022.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 489400357 is about 22122.3949200804. The cubic root of 489400357 is about 788.0517913901.

The spelling of 489400357 in words is "four hundred eighty-nine million, four hundred thousand, three hundred fifty-seven".