449036280 has 384 divisors, whose sum is σ = 1849236480. Its totient is φ = 91791360.

The previous prime is 449036267. The next prime is 449036281. The reversal of 449036280 is 82630944.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449036281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2688757 + ... + 2688923.

It is an arithmetic number, because the mean of its divisors is an integer number (4815720).

Almost surely, 2^449036280 is an apocalyptic number.

449036280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449036280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924618240).

449036280 is an abundant number, since it is smaller than the sum of its proper divisors (1400200200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449036280 is a wasteful number, since it uses less digits than its factorization.

449036280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 449036280 is about 21190.4761626538. The cubic root of 449036280 is about 765.7619986525.

The spelling of 449036280 in words is "four hundred forty-nine million, thirty-six thousand, two hundred eighty".