490579515 has 24 divisors (see below), whose sum is σ = 879662160. Its totient is φ = 252619584.

The previous prime is 490579499. The next prime is 490579517. The reversal of 490579515 is 515975094.

It is not a de Polignac number, because 490579515 - 2⁴ = 490579499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (490579517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186657 + ... + 189266.

It is an arithmetic number, because the mean of its divisors is an integer number (36652590).

Almost surely, 2^490579515 is an apocalyptic number.

490579515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

490579515 is a deficient number, since it is larger than the sum of its proper divisors (389082645).

490579515 is a wasteful number, since it uses less digits than its factorization.

490579515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375963 (or 375960 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The square root of 490579515 is about 22149.0296627189. The cubic root of 490579515 is about 788.6841926942.

The spelling of 490579515 in words is "four hundred ninety million, five hundred seventy-nine thousand, five hundred fifteen".