418685420 has 12 divisors (see below), whose sum is σ = 879239424. Its totient is φ = 167474160.

The previous prime is 418685419. The next prime is 418685437. The reversal of 418685420 is 24586814.

It is a happy 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, 10467116 + ... + 10467155.

It is an arithmetic number, because the mean of its divisors is an integer number (73269952).

Almost surely, 2^418685420 is an apocalyptic number.

It is an amenable number.

418685420 is an abundant number, since it is smaller than the sum of its proper divisors (460554004).

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

418685420 is a wasteful number, since it uses less digits than its factorization.

418685420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20934280 (or 20934278 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 418685420 is about 20461.8039282953. The cubic root of 418685420 is about 748.1050949972.

The spelling of 418685420 in words is "four hundred eighteen million, six hundred eighty-five thousand, four hundred twenty".