449529820 has 48 divisors (see below), whose sum is σ = 956642400. Its totient is φ = 177422336.

The previous prime is 449529767. The next prime is 449529851. The reversal of 449529820 is 28925944.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1000956 + ... + 1001404.

It is an arithmetic number, because the mean of its divisors is an integer number (19930050).

Almost surely, 2^449529820 is an apocalyptic number.

It is an amenable number.

449529820 is an abundant number, since it is smaller than the sum of its proper divisors (507112580).

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

449529820 is a wasteful number, since it uses less digits than its factorization.

449529820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 449529820 is about 21202.1182903973. The cubic root of 449529820 is about 766.0424480018.

The spelling of 449529820 in words is "four hundred forty-nine million, five hundred twenty-nine thousand, eight hundred twenty".