489640650 has 24 divisors (see below), whose sum is σ = 1214309184. Its totient is φ = 130570800.

The previous prime is 489640609. The next prime is 489640661. The reversal of 489640650 is 56046984.

It is a super-2 number, since 2×489640650² = 479495932264845000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1631986 + ... + 1632285.

It is an arithmetic number, because the mean of its divisors is an integer number (50596216).

Almost surely, 2^489640650 is an apocalyptic number.

489640650 is an abundant number, since it is smaller than the sum of its proper divisors (724668534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489640650 is a wasteful number, since it uses less digits than its factorization.

489640650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264286 (or 3264281 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 489640650 is about 22127.8252433446. The cubic root of 489640650 is about 788.1807467145.

The spelling of 489640650 in words is "four hundred eighty-nine million, six hundred forty thousand, six hundred fifty".