491048980 has 48 divisors (see below), whose sum is σ = 1043554176. Its totient is φ = 194083200.

The previous prime is 491048953. The next prime is 491048983. The reversal of 491048980 is 89840194.

It is a super-2 number, since 2×491048980² = 482258201518080800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491048983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836247 + ... + 836833.

It is an arithmetic number, because the mean of its divisors is an integer number (21740712).

Almost surely, 2^491048980 is an apocalyptic number.

It is an amenable number.

491048980 is an abundant number, since it is smaller than the sum of its proper divisors (552505196).

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

491048980 is a wasteful number, since it uses less digits than its factorization.

491048980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 491048980 is about 22159.6249968270. The cubic root of 491048980 is about 788.9356922425.

The spelling of 491048980 in words is "four hundred ninety-one million, forty-eight thousand, nine hundred eighty".