449661960 has 192 divisors, whose sum is σ = 1663908480. Its totient is φ = 104248320.

The previous prime is 449661943. The next prime is 449661997. The reversal of 449661960 is 69166944.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 88612 + ... + 93548.

It is an arithmetic number, because the mean of its divisors is an integer number (8666190).

Almost surely, 2^449661960 is an apocalyptic number.

449661960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449661960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831954240).

449661960 is an abundant number, since it is smaller than the sum of its proper divisors (1214246520).

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

449661960 is a wasteful number, since it uses less digits than its factorization.

449661960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988 (or 4981 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 449661960 is about 21205.2342594936. The cubic root of 449661960 is about 766.1175004439.

The spelling of 449661960 in words is "four hundred forty-nine million, six hundred sixty-one thousand, nine hundred sixty".