491454480 has 80 divisors (see below), whose sum is σ = 1662018624. Its totient is φ = 119139840.

The previous prime is 491454473. The next prime is 491454499. The reversal of 491454480 is 84454194.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-4 number, since 4×491454480⁴ (a number of 36 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90439 + ... + 95718.

Almost surely, 2^491454480 is an apocalyptic number.

491454480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

491454480 is an abundant number, since it is smaller than the sum of its proper divisors (1170564144).

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

491454480 is a wasteful number, since it uses less digits than its factorization.

491454480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186184 (or 186178 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 491454480 is about 22168.7726317900. The cubic root of 491454480 is about 789.1527957746.

The spelling of 491454480 in words is "four hundred ninety-one million, four hundred fifty-four thousand, four hundred eighty".