1449280 has 56 divisors (see below), whose sum is σ = 3950208. Its totient is φ = 496128.

The previous prime is 1449271. The next prime is 1449289. The reversal of 1449280 is 829441.

It is an interprime number because it is at equal distance from previous prime (1449271) and next prime (1449289).

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1917 + ... + 2563.

2^1449280 is an apocalyptic number.

1449280 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 1449280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975104).

1449280 is an abundant number, since it is smaller than the sum of its proper divisors (2500928).

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

1449280 is an equidigital number, since it uses as much as digits as its factorization.

1449280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1449280 is about 1203.8604570298. The cubic root of 1449280 is about 113.1663824059.

It can be divided in two parts, 14 and 49280, that added together give a palindrome (49294).

The spelling of 1449280 in words is "one million, four hundred forty-nine thousand, two hundred eighty".