1449909120 has 288 divisors, whose sum is σ = 5145041160. Its totient is φ = 347043840.

The previous prime is 1449909113. The next prime is 1449909127. The reversal of 1449909120 is 219099441.

It is an interprime number because it is at equal distance from previous prime (1449909113) and next prime (1449909127).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449909127) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18353241 + ... + 18353319.

Almost surely, 2^1449909120 is an apocalyptic number.

1449909120 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 1449909120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2572520580).

1449909120 is an abundant number, since it is smaller than the sum of its proper divisors (3695132040).

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

1449909120 is an equidigital number, since it uses as much as digits as its factorization.

1449909120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 1449909120 is about 38077.6721977591. The cubic root of 1449909120 is about 1131.8275488858.

The spelling of 1449909120 in words is "one billion, four hundred forty-nine million, nine hundred nine thousand, one hundred twenty".