446116421 has 4 divisors (see below), whose sum is σ = 446161452. Its totient is φ = 446071392.

The previous prime is 446116417. The next prime is 446116427. The reversal of 446116421 is 124611644.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 276856321 + 169260100 = 16639^2 + 13010^2 .

It is a cyclic number.

It is not a de Polignac number, because 446116421 - 2² = 446116417 is a prime.

It is a super-2 number, since 2×446116421² = 398039722171698482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (446116427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440 + ... + 29873.

It is an arithmetic number, because the mean of its divisors is an integer number (111540363).

Almost surely, 2^446116421 is an apocalyptic number.

It is an amenable number.

446116421 is a deficient number, since it is larger than the sum of its proper divisors (45031).

446116421 is a wasteful number, since it uses less digits than its factorization.

446116421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45030.

The product of its digits is 4608, while the sum is 29.

The square root of 446116421 is about 21121.4682491535. The cubic root of 446116421 is about 764.0985985381.

The spelling of 446116421 in words is "four hundred forty-six million, one hundred sixteen thousand, four hundred twenty-one".