418121672 has 32 divisors (see below), whose sum is σ = 799048800. Its totient is φ = 205058304.

The previous prime is 418121663. The next prime is 418121677. The reversal of 418121672 is 276121814.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (418121677) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 321728 + ... + 323024.

It is an arithmetic number, because the mean of its divisors is an integer number (24970275).

Almost surely, 2^418121672 is an apocalyptic number.

It is an amenable number.

418121672 is a deficient number, since it is larger than the sum of its proper divisors (380927128).

418121672 is a wasteful number, since it uses less digits than its factorization.

418121672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045 (or 2041 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 418121672 is about 20448.0236697829. The cubic root of 418121672 is about 747.7691767788.

The spelling of 418121672 in words is "four hundred eighteen million, one hundred twenty-one thousand, six hundred seventy-two".