1445040 has 100 divisors (see below), whose sum is σ = 5041344. Its totient is φ = 383616.

The previous prime is 1445039. The next prime is 1445047. The reversal of 1445040 is 405441.

1445040 is nontrivially palindromic in base 14.

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 (1445047) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6369 + ... + 6591.

2^1445040 is an apocalyptic number.

1445040 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 1445040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2520672).

1445040 is an abundant number, since it is smaller than the sum of its proper divisors (3596304).

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

1445040 is a wasteful number, since it uses less digits than its factorization.

1445040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 233 counting only the distinct ones).

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

The square root of 1445040 is about 1202.0981657086. The cubic root of 1445040 is about 113.0559151054.

It can be divided in two parts, 144 and 5040, that added together give a square (5184 = 72²).

The spelling of 1445040 in words is "one million, four hundred forty-five thousand, forty".