448371881 has 2 divisors, whose sum is σ = 448371882. Its totient is φ = 448371880.

The previous prime is 448371877. The next prime is 448371901. The reversal of 448371881 is 188173844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364466281 + 83905600 = 19091^2 + 9160^2 .

It is a cyclic number.

It is not a de Polignac number, because 448371881 - 2² = 448371877 is a prime.

It is a super-2 number, since 2×448371881² = 402074687342956322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (448371181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224185940 + 224185941.

It is an arithmetic number, because the mean of its divisors is an integer number (224185941).

Almost surely, 2^448371881 is an apocalyptic number.

It is an amenable number.

448371881 is a deficient number, since it is larger than the sum of its proper divisors (1).

448371881 is an equidigital number, since it uses as much as digits as its factorization.

448371881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 44.

The square root of 448371881 is about 21174.7935290996. The cubic root of 448371881 is about 765.3841356132.

The spelling of 448371881 in words is "four hundred forty-eight million, three hundred seventy-one thousand, eight hundred eighty-one".