449428646450 has 96 divisors (see below), whose sum is σ = 958745386368. Its totient is φ = 153544320000.

The previous prime is 449428646449. The next prime is 449428646483. The reversal of 449428646450 is 54646824944.

It is a happy number.

It is a super-2 number, since 2×449428646450² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157637525 + ... + 157640375.

It is an arithmetic number, because the mean of its divisors is an integer number (9986931108).

Almost surely, 2^449428646450 is an apocalyptic number.

449428646450 is an abundant number, since it is smaller than the sum of its proper divisors (509316739918).

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

449428646450 is a wasteful number, since it uses less digits than its factorization.

449428646450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308 (or 4303 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 56.

The spelling of 449428646450 in words is "four hundred forty-nine billion, four hundred twenty-eight million, six hundred forty-six thousand, four hundred fifty".