448420451 has 4 divisors (see below), whose sum is σ = 454736304. Its totient is φ = 442104600.

The previous prime is 448420447. The next prime is 448420457. The reversal of 448420451 is 154024844.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 448420451 - 2² = 448420447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448420457) 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, 3157820 + ... + 3157961.

It is an arithmetic number, because the mean of its divisors is an integer number (113684076).

Almost surely, 2^448420451 is an apocalyptic number.

448420451 is a deficient number, since it is larger than the sum of its proper divisors (6315853).

448420451 is an equidigital number, since it uses as much as digits as its factorization.

448420451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315852.

The product of its (nonzero) digits is 20480, while the sum is 32.

The square root of 448420451 is about 21175.9403805356. The cubic root of 448420451 is about 765.4117714268.

The spelling of 448420451 in words is "four hundred forty-eight million, four hundred twenty thousand, four hundred fifty-one".