471818340 has 144 divisors (see below), whose sum is σ = 1731929472. Its totient is φ = 101495808.

The previous prime is 471818327. The next prime is 471818351. The reversal of 471818340 is 43818174.

471818340 is a `hidden beast` number, since 471 + 8 + 183 + 4 + 0 = 666.

It is a super-2 number, since 2×471818340² = 445225091920711200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 471818295 and 471818304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10407 + ... + 32433.

It is an arithmetic number, because the mean of its divisors is an integer number (12027288).

Almost surely, 2^471818340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 471818340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865964736).

471818340 is an abundant number, since it is smaller than the sum of its proper divisors (1260111132).

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

471818340 is a wasteful number, since it uses less digits than its factorization.

471818340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22066 (or 22061 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 471818340 is about 21721.3797904277. The cubic root of 471818340 is about 778.4993831074.

The spelling of 471818340 in words is "four hundred seventy-one million, eight hundred eighteen thousand, three hundred forty".