449747070 has 64 divisors (see below), whose sum is σ = 1179795456. Its totient is φ = 109232640.

The previous prime is 449747059. The next prime is 449747117. The reversal of 449747070 is 70747944.

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 31 ways as a sum of consecutive naturals, for example, 1587 + ... + 30033.

It is an arithmetic number, because the mean of its divisors is an integer number (18434304).

Almost surely, 2^449747070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449747070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589897728).

449747070 is an abundant number, since it is smaller than the sum of its proper divisors (730048386).

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

449747070 is a wasteful number, since it uses less digits than its factorization.

449747070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28505.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 449747070 is about 21207.2409803821. The cubic root of 449747070 is about 766.1658331566.

The spelling of 449747070 in words is "four hundred forty-nine million, seven hundred forty-seven thousand, seventy".