449415906 has 16 divisors (see below), whose sum is σ = 937911744. Its totient is φ = 143291984.

The previous prime is 449415881. The next prime is 449415907. The reversal of 449415906 is 609514944.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (449415907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628181 + ... + 1628456.

It is an arithmetic number, because the mean of its divisors is an integer number (58619484).

Almost surely, 2^449415906 is an apocalyptic number.

449415906 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

449415906 is an abundant number, since it is smaller than the sum of its proper divisors (488495838).

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

449415906 is a wasteful number, since it uses less digits than its factorization.

449415906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256665.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 449415906 is about 21199.4317376669. The cubic root of 449415906 is about 765.9777356976.

The spelling of 449415906 in words is "four hundred forty-nine million, four hundred fifteen thousand, nine hundred six".