449761620 has 192 divisors, whose sum is σ = 1594607616. Its totient is φ = 91998720.

The previous prime is 449761607. The next prime is 449761633. The reversal of 449761620 is 26167944.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (449761607) and next prime (449761633).

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, 308814 + ... + 310266.

It is an arithmetic number, because the mean of its divisors is an integer number (8305248).

Almost surely, 2^449761620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449761620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797303808).

449761620 is an abundant number, since it is smaller than the sum of its proper divisors (1144845996).

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

449761620 is a wasteful number, since it uses less digits than its factorization.

449761620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550 (or 1548 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 449761620 is about 21207.5840208167. The cubic root of 449761620 is about 766.1740952765.

The spelling of 449761620 in words is "four hundred forty-nine million, seven hundred sixty-one thousand, six hundred twenty".