449257806 has 32 divisors (see below), whose sum is σ = 999300000. Its totient is φ = 149610240.

The previous prime is 449257799. The next prime is 449257813. The reversal of 449257806 is 608752944.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (449257799) and next prime (449257813).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64116 + ... + 70776.

It is an arithmetic number, because the mean of its divisors is an integer number (31228125).

Almost surely, 2^449257806 is an apocalyptic number.

449257806 is an abundant number, since it is smaller than the sum of its proper divisors (550042194).

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

449257806 is a wasteful number, since it uses less digits than its factorization.

449257806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7921 (or 7915 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 449257806 is about 21195.7025361275. The cubic root of 449257806 is about 765.8879040725.

The spelling of 449257806 in words is "four hundred forty-nine million, two hundred fifty-seven thousand, eight hundred six".