449778925 has 48 divisors (see below), whose sum is σ = 612272320. Its totient is φ = 327499200.

The previous prime is 449778899. The next prime is 449778941. The reversal of 449778925 is 529877944.

It is not a de Polignac number, because 449778925 - 2¹⁷ = 449647853 is a prime.

Its product of digits (5080320) is a multiple of the sum of its prime divisors (128).

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 47 ways as a sum of consecutive naturals, for example, 7373395 + ... + 7373455.

Almost surely, 2^449778925 is an apocalyptic number.

It is an amenable number.

449778925 is a deficient number, since it is larger than the sum of its proper divisors (162493395).

449778925 is an equidigital number, since it uses as much as digits as its factorization.

449778925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 128 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The square root of 449778925 is about 21207.9920077314. The cubic root of 449778925 is about 766.1839215727.

The spelling of 449778925 in words is "four hundred forty-nine million, seven hundred seventy-eight thousand, nine hundred twenty-five".