1449469880 has 64 divisors (see below), whose sum is σ = 3416688000. Its totient is φ = 552674304.

The previous prime is 1449469877. The next prime is 1449469907. The reversal of 1449469880 is 889649441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83732 + ... + 99548.

It is an arithmetic number, because the mean of its divisors is an integer number (53385750).

Almost surely, 2^1449469880 is an apocalyptic number.

1449469880 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 1449469880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1708344000).

1449469880 is an abundant number, since it is smaller than the sum of its proper divisors (1967218120).

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

1449469880 is a wasteful number, since it uses less digits than its factorization.

1449469880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15936 (or 15932 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 53.

The square root of 1449469880 is about 38071.9040763658. The cubic root of 1449469880 is about 1131.7132442175.

The spelling of 1449469880 in words is "one billion, four hundred forty-nine million, four hundred sixty-nine thousand, eight hundred eighty".