1450440 has 128 divisors (see below), whose sum is σ = 5184000. Its totient is φ = 359424.

The previous prime is 1450439. The next prime is 1450447. The reversal of 1450440 is 440541.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1450447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18321 + ... + 18399.

It is an arithmetic number, because the mean of its divisors is an integer number (40500).

2^1450440 is an apocalyptic number.

1450440 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 1450440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2592000).

1450440 is an abundant number, since it is smaller than the sum of its proper divisors (3733560).

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

1450440 is a wasteful number, since it uses less digits than its factorization.

1450440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1450440 is about 1204.3421440770. The cubic root of 1450440 is about 113.1965670483.

Adding to 1450440 its reverse (440541), we get a palindrome (1890981).

The spelling of 1450440 in words is "one million, four hundred fifty thousand, four hundred forty".