418881121 has 4 divisors (see below), whose sum is σ = 422948032. Its totient is φ = 414814212.

The previous prime is 418881091. The next prime is 418881131. The reversal of 418881121 is 121188814.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121188814 = 2 ⋅60594407.

It is a cyclic number.

It is not a de Polignac number, because 418881121 - 2⁷ = 418880993 is a prime.

It is a super-2 number, since 2×418881121² = 350922787060433282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (418881131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033301 + ... + 2033506.

It is an arithmetic number, because the mean of its divisors is an integer number (105737008).

Almost surely, 2^418881121 is an apocalyptic number.

It is an amenable number.

418881121 is a deficient number, since it is larger than the sum of its proper divisors (4066911).

418881121 is a wasteful number, since it uses less digits than its factorization.

418881121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066910.

The product of its digits is 4096, while the sum is 34.

The square root of 418881121 is about 20466.5854748661. The cubic root of 418881121 is about 748.2216360432.

The spelling of 418881121 in words is "four hundred eighteen million, eight hundred eighty-one thousand, one hundred twenty-one".