1442879 has 4 divisors (see below), whose sum is σ = 1518840. Its totient is φ = 1366920.

The previous prime is 1442873. The next prime is 1442887. The reversal of 1442879 is 9782441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1442879 - 2⁴ = 1442863 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 (1442873) 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, 37952 + ... + 37989.

It is an arithmetic number, because the mean of its divisors is an integer number (379710).

2^1442879 is an apocalyptic number.

1442879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1442879 is a deficient number, since it is larger than the sum of its proper divisors (75961).

1442879 is an equidigital number, since it uses as much as digits as its factorization.

1442879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75960.

The product of its digits is 16128, while the sum is 35.

The square root of 1442879 is about 1201.1989843486. The cubic root of 1442879 is about 112.9995301100. Note that the first 3 decimals are identical.

The spelling of 1442879 in words is "one million, four hundred forty-two thousand, eight hundred seventy-nine".