1442807 has 4 divisors (see below), whose sum is σ = 1527696. Its totient is φ = 1357920.

The previous prime is 1442797. The next prime is 1442827. The reversal of 1442807 is 7082441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7082441 = 487 ⋅14543.

It is a cyclic number.

It is not a de Polignac number, because 1442807 - 2⁶ = 1442743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42419 + ... + 42452.

It is an arithmetic number, because the mean of its divisors is an integer number (381924).

2^1442807 is an apocalyptic number.

1442807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1442807 is a deficient number, since it is larger than the sum of its proper divisors (84889).

1442807 is an equidigital number, since it uses as much as digits as its factorization.

1442807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84888.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 1442807 is about 1201.1690139194. The cubic root of 1442807 is about 112.9976505111.

The spelling of 1442807 in words is "one million, four hundred forty-two thousand, eight hundred seven".