449103673590 has 128 divisors (see below), whose sum is σ = 1266542065152. Its totient is φ = 100478238720.

The previous prime is 449103673583. The next prime is 449103673643. The reversal of 449103673590 is 95376301944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32781622 + ... + 32795318.

It is an arithmetic number, because the mean of its divisors is an integer number (9894859884).

Almost surely, 2^449103673590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449103673590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633271032576).

449103673590 is an abundant number, since it is smaller than the sum of its proper divisors (817438391562).

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

449103673590 is a wasteful number, since it uses less digits than its factorization.

449103673590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21374.

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 449103673590 in words is "four hundred forty-nine billion, one hundred three million, six hundred seventy-three thousand, five hundred ninety".