449266140 has 72 divisors (see below), whose sum is σ = 1442946960. Its totient is φ = 112756224.

The previous prime is 449266133. The next prime is 449266187. The reversal of 449266140 is 41662944.

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

It is a junction number, because it is equal to n+sod(n) for n = 449266095 and 449266104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70350 + ... + 76469.

It is an arithmetic number, because the mean of its divisors is an integer number (20040930).

Almost surely, 2^449266140 is an apocalyptic number.

It is an amenable number.

449266140 is an abundant number, since it is smaller than the sum of its proper divisors (993680820).

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

449266140 is a wasteful number, since it uses less digits than its factorization.

449266140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146851 (or 146846 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 449266140 is about 21195.8991316717. The cubic root of 449266140 is about 765.8926399355.

The spelling of 449266140 in words is "four hundred forty-nine million, two hundred sixty-six thousand, one hundred forty".