1442725 has 6 divisors (see below), whose sum is σ = 1789010. Its totient is φ = 1154160.

The previous prime is 1442723. The next prime is 1442731. The reversal of 1442725 is 5272441.

It can be written as a sum of positive squares in 3 ways, for example, as 324 + 1442401 = 18^2 + 1201^2 .

It is not a de Polignac number, because 1442725 - 2¹ = 1442723 is a prime.

It is a super-3 number, since 3×1442725³ = 9008903336804484375, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 57709 = 1442725 / (1 + 4 + 4 + 2 + 7 + 2 + 5).

It is a d-powerful number, because it can be written as 1 + 4⁴ + 4⁷ + 2⁷ + 7⁷ + 2¹⁹ + 5⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 1442725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28830 + ... + 28879.

2^1442725 is an apocalyptic number.

It is an amenable number.

1442725 is a deficient number, since it is larger than the sum of its proper divisors (346285).

1442725 is an equidigital number, since it uses as much as digits as its factorization.

1442725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57719 (or 57714 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 1442725 is about 1201.1348800197. The cubic root of 1442725 is about 112.9955097806.

The spelling of 1442725 in words is "one million, four hundred forty-two thousand, seven hundred twenty-five".