449339692560 has 80 divisors (see below), whose sum is σ = 1519585151040. Its totient is φ = 108930833920.

The previous prime is 449339692507. The next prime is 449339692567. The reversal of 449339692560 is 65296933944.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 449339692494 and 449339692503.

It is not an unprimeable number, because it can be changed into a prime (449339692567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85099575 + ... + 85104854.

It is an arithmetic number, because the mean of its divisors is an integer number (18994814388).

Almost surely, 2^449339692560 is an apocalyptic number.

449339692560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449339692560 is an abundant number, since it is smaller than the sum of its proper divisors (1070245458480).

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

449339692560 is a wasteful number, since it uses less digits than its factorization.

449339692560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170204456 (or 170204450 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 60.

The spelling of 449339692560 in words is "four hundred forty-nine billion, three hundred thirty-nine million, six hundred ninety-two thousand, five hundred sixty".