1449530880 has 320 divisors, whose sum is σ = 5397511680. Its totient is φ = 324993024.

The previous prime is 1449530879. The next prime is 1449530899. The reversal of 1449530880 is 880359441.

It is a tau number, because it is divible by the number of its divisors (320).

It is a super-2 number, since 2×1449530880² = 4202279544147148800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3171612 + ... + 3172068.

It is an arithmetic number, because the mean of its divisors is an integer number (16867224).

Almost surely, 2^1449530880 is an apocalyptic number.

1449530880 is a gapful number since it is divisible by the number (10) 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 1449530880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2698755840).

1449530880 is an abundant number, since it is smaller than the sum of its proper divisors (3947980800).

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

1449530880 is an equidigital number, since it uses as much as digits as its factorization.

1449530880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 1449530880 is about 38072.7051836352. The cubic root of 1449530880 is about 1131.7291198008.

The spelling of 1449530880 in words is "one billion, four hundred forty-nine million, five hundred thirty thousand, eight hundred eighty".