418564340 has 12 divisors (see below), whose sum is σ = 878985156. Its totient is φ = 167425728.

The previous prime is 418564339. The next prime is 418564351. The reversal of 418564340 is 43465814.

It can be written as a sum of positive squares in 2 ways, for example, as 235070224 + 183494116 = 15332^2 + 13546^2 .

It is a super-2 number, since 2×418564340² = 350392213439271200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 418564340.

It is a congruent number.

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, 10464089 + ... + 10464128.

It is an arithmetic number, because the mean of its divisors is an integer number (73248763).

Almost surely, 2^418564340 is an apocalyptic number.

It is an amenable number.

418564340 is an abundant number, since it is smaller than the sum of its proper divisors (460420816).

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

418564340 is a wasteful number, since it uses less digits than its factorization.

418564340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20928226 (or 20928224 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 418564340 is about 20458.8450309396. The cubic root of 418564340 is about 748.0329729905.

The spelling of 418564340 in words is "four hundred eighteen million, five hundred sixty-four thousand, three hundred forty".