449044440 has 64 divisors (see below), whose sum is σ = 1450764000. Its totient is φ = 110533632.

The previous prime is 449044417. The next prime is 449044447. The reversal of 449044440 is 44440944.

449044440 = 65² + 66² + ... + 1104².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449044447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142365 + ... + 145484.

Almost surely, 2^449044440 is an apocalyptic number.

449044440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449044440 is an abundant number, since it is smaller than the sum of its proper divisors (1001719560).

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

449044440 is a wasteful number, since it uses less digits than its factorization.

449044440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287876 (or 287872 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 449044440 is about 21190.6687011052. The cubic root of 449044440 is about 765.7666371642.

The spelling of 449044440 in words is "four hundred forty-nine million, forty-four thousand, four hundred forty".