495951980 has 12 divisors (see below), whose sum is σ = 1041499200. Its totient is φ = 198380784.

The previous prime is 495951971. The next prime is 495951991. The reversal of 495951980 is 89159594.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12398780 + ... + 12398819.

It is an arithmetic number, because the mean of its divisors is an integer number (86791600).

Almost surely, 2^495951980 is an apocalyptic number.

It is an amenable number.

495951980 is an abundant number, since it is smaller than the sum of its proper divisors (545547220).

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

495951980 is a wasteful number, since it uses less digits than its factorization.

495951980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24797608 (or 24797606 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 50.

The square root of 495951980 is about 22269.9793443999. The cubic root of 495951980 is about 791.5527756876.

The spelling of 495951980 in words is "four hundred ninety-five million, nine hundred fifty-one thousand, nine hundred eighty".