1444340 has 24 divisors (see below), whose sum is σ = 3055752. Its totient is φ = 573440.

The previous prime is 1444309. The next prime is 1444411. The reversal of 1444340 is 434441.

It can be written as a sum of positive squares in 4 ways, for example, as 659344 + 784996 = 812^2 + 886^2 .

It is a super-2 number, since 2×1444340² = 4172236071200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5000 + ... + 5280.

It is an arithmetic number, because the mean of its divisors is an integer number (127323).

2^1444340 is an apocalyptic number.

1444340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444340 is an abundant number, since it is smaller than the sum of its proper divisors (1611412).

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

1444340 is a wasteful number, since it uses less digits than its factorization.

1444340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1444340 is about 1201.8069728538. The cubic root of 1444340 is about 113.0376568051.

Adding to 1444340 its reverse (434441), we get a palindrome (1878781).

The spelling of 1444340 in words is "one million, four hundred forty-four thousand, three hundred forty".