408444061 has 2 divisors, whose sum is σ = 408444062. Its totient is φ = 408444060.

The previous prime is 408444059. The next prime is 408444109. The reversal of 408444061 is 160444804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209351961 + 199092100 = 14469^2 + 14110^2 .

It is a cyclic number.

It is not a de Polignac number, because 408444061 - 2¹ = 408444059 is a prime.

Together with 408444059, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408444041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204222030 + 204222031.

It is an arithmetic number, because the mean of its divisors is an integer number (204222031).

Almost surely, 2^408444061 is an apocalyptic number.

It is an amenable number.

408444061 is a deficient number, since it is larger than the sum of its proper divisors (1).

408444061 is an equidigital number, since it uses as much as digits as its factorization.

408444061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 408444061 is about 20209.9990351311. Note that the first 3 decimals coincide. The cubic root of 408444061 is about 741.9549361985.

Adding to 408444061 its reverse (160444804), we get a palindrome (568888865).

The spelling of 408444061 in words is "four hundred eight million, four hundred forty-four thousand, sixty-one".