448572021 has 8 divisors (see below), whose sum is σ = 612683904. Its totient is φ = 291754080.

The previous prime is 448571987. The next prime is 448572037. The reversal of 448572021 is 120275844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 448572021 - 2²¹ = 446474869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448572041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1823341 + ... + 1823586.

It is an arithmetic number, because the mean of its divisors is an integer number (76585488).

Almost surely, 2^448572021 is an apocalyptic number.

448572021 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

448572021 is a deficient number, since it is larger than the sum of its proper divisors (164111883).

448572021 is a wasteful number, since it uses less digits than its factorization.

448572021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646971.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 448572021 is about 21179.5189038845. The cubic root of 448572021 is about 765.4980003170.

The spelling of 448572021 in words is "four hundred forty-eight million, five hundred seventy-two thousand, twenty-one".