449800451 has 4 divisors (see below), whose sum is σ = 449949432. Its totient is φ = 449651472.

The previous prime is 449800423. The next prime is 449800457. The reversal of 449800451 is 154008944.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449800451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449800457) 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, 69866 + ... + 76031.

It is an arithmetic number, because the mean of its divisors is an integer number (112487358).

Almost surely, 2^449800451 is an apocalyptic number.

449800451 is a deficient number, since it is larger than the sum of its proper divisors (148981).

449800451 is a wasteful number, since it uses less digits than its factorization.

449800451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148980.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 449800451 is about 21208.4994990216. The cubic root of 449800451 is about 766.1961443271.

The spelling of 449800451 in words is "four hundred forty-nine million, eight hundred thousand, four hundred fifty-one".