448266621 has 16 divisors (see below), whose sum is σ = 652661568. Its totient is φ = 271411200.

The previous prime is 448266617. The next prime is 448266631. The reversal of 448266621 is 126662844.

It is not a de Polignac number, because 448266621 - 2² = 448266617 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 448266621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448266631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30781 + ... + 42941.

It is an arithmetic number, because the mean of its divisors is an integer number (40791348).

Almost surely, 2^448266621 is an apocalyptic number.

It is an amenable number.

448266621 is a deficient number, since it is larger than the sum of its proper divisors (204394947).

448266621 is a wasteful number, since it uses less digits than its factorization.

448266621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13292.

The product of its digits is 110592, while the sum is 39.

The square root of 448266621 is about 21172.3078808145. The cubic root of 448266621 is about 765.3242369422.

The spelling of 448266621 in words is "four hundred forty-eight million, two hundred sixty-six thousand, six hundred twenty-one".