490785579 has 12 divisors (see below), whose sum is σ = 709484256. Its totient is φ = 326926512.

The previous prime is 490785499. The next prime is 490785593. The reversal of 490785579 is 975587094.

490785579 is a `hidden beast` number, since 490 + 7 + 85 + 5 + 79 = 666.

It is not a de Polignac number, because 490785579 - 2²¹ = 488688427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490785179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9859 + ... + 32844.

It is an arithmetic number, because the mean of its divisors is an integer number (59123688).

Almost surely, 2^490785579 is an apocalyptic number.

490785579 is a deficient number, since it is larger than the sum of its proper divisors (218698677).

490785579 is a wasteful number, since it uses less digits than its factorization.

490785579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43986 (or 43983 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 54.

The square root of 490785579 is about 22153.6809356820. The cubic root of 490785579 is about 788.7946040647.

The spelling of 490785579 in words is "four hundred ninety million, seven hundred eighty-five thousand, five hundred seventy-nine".