471991408 has 20 divisors (see below), whose sum is σ = 1045124080. Its totient is φ = 202281984.

The previous prime is 471991397. The next prime is 471991409. The reversal of 471991408 is 804199174.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471991409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2106993 + ... + 2107216.

It is an arithmetic number, because the mean of its divisors is an integer number (52256204).

Almost surely, 2^471991408 is an apocalyptic number.

It is an amenable number.

471991408 is an abundant number, since it is smaller than the sum of its proper divisors (573132672).

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

471991408 is a wasteful number, since it uses less digits than its factorization.

471991408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214224 (or 4214218 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 471991408 is about 21725.3632420726. The cubic root of 471991408 is about 778.5945587639.

The spelling of 471991408 in words is "four hundred seventy-one million, nine hundred ninety-one thousand, four hundred eight".