489575890 has 16 divisors (see below), whose sum is σ = 889037208. Its totient is φ = 194096896.

The previous prime is 489575851. The next prime is 489575899. The reversal of 489575890 is 98575984.

It can be written as a sum of positive squares in 4 ways, for example, as 407111329 + 82464561 = 20177^2 + 9081^2 .

It is a super-3 number, since 3×489575890³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (489575899) 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, 215497 + ... + 217756.

Almost surely, 2^489575890 is an apocalyptic number.

489575890 is a deficient number, since it is larger than the sum of its proper divisors (399461318).

489575890 is a wasteful number, since it uses less digits than its factorization.

489575890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433373.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 489575890 is about 22126.3618789895. The cubic root of 489575890 is about 788.1459968521.

The spelling of 489575890 in words is "four hundred eighty-nine million, five hundred seventy-five thousand, eight hundred ninety".