449206920 has 48 divisors (see below), whose sum is σ = 1459923660. Its totient is φ = 119788416.

The previous prime is 449206913. The next prime is 449206937. The reversal of 449206920 is 29602944.

449206920 is a `hidden beast` number, since 449 + 206 + 9 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 425761956 + 23444964 = 20634^2 + 4842^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 623539 + ... + 624258.

Almost surely, 2^449206920 is an apocalyptic number.

449206920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449206920 is an abundant number, since it is smaller than the sum of its proper divisors (1010716740).

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

449206920 is a wasteful number, since it uses less digits than its factorization.

449206920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247814 (or 1247807 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 449206920 is about 21194.5021172945. The cubic root of 449206920 is about 765.8589864199.

The spelling of 449206920 in words is "four hundred forty-nine million, two hundred six thousand, nine hundred twenty".