449778756 has 24 divisors (see below), whose sum is σ = 1199410240. Its totient is φ = 128508192.

The previous prime is 449778739. The next prime is 449778761. The reversal of 449778756 is 657877944.

It is a junction number, because it is equal to n+sod(n) for n = 449778696 and 449778705.

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 7 ways as a sum of consecutive naturals, for example, 2677171 + ... + 2677338.

Almost surely, 2^449778756 is an apocalyptic number.

It is an amenable number.

449778756 is an abundant number, since it is smaller than the sum of its proper divisors (749631484).

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

449778756 is a wasteful number, since it uses less digits than its factorization.

449778756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5354523 (or 5354521 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 57.

The square root of 449778756 is about 21207.9880233840. The cubic root of 449778756 is about 766.1838256107.

The spelling of 449778756 in words is "four hundred forty-nine million, seven hundred seventy-eight thousand, seven hundred fifty-six".