449753820 has 48 divisors (see below), whose sum is σ = 1263903648. Its totient is φ = 119496960.

The previous prime is 449753783. The next prime is 449753827. The reversal of 449753820 is 28357944.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449753827) 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 15 ways as a sum of consecutive naturals, for example, 3090 + ... + 30150.

It is an arithmetic number, because the mean of its divisors is an integer number (26331326).

Almost surely, 2^449753820 is an apocalyptic number.

It is an amenable number.

449753820 is an abundant number, since it is smaller than the sum of its proper divisors (814149828).

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

449753820 is a wasteful number, since it uses less digits than its factorization.

449753820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27350 (or 27348 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 449753820 is about 21207.4001235418. The cubic root of 449753820 is about 766.1696661210.

The spelling of 449753820 in words is "four hundred forty-nine million, seven hundred fifty-three thousand, eight hundred twenty".