1442905 has 8 divisors (see below), whose sum is σ = 1806912. Its totient is φ = 1104048.

The previous prime is 1442899. The next prime is 1442911. The reversal of 1442905 is 5092441.

It is an interprime number because it is at equal distance from previous prime (1442899) and next prime (1442911).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1442905 - 2⁵ = 1442873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442905.

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, 6159 + ... + 6388.

It is an arithmetic number, because the mean of its divisors is an integer number (225864).

2^1442905 is an apocalyptic number.

It is an amenable number.

1442905 is a deficient number, since it is larger than the sum of its proper divisors (364007).

1442905 is a wasteful number, since it uses less digits than its factorization.

1442905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12575.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1442905 is about 1201.2098068198. The cubic root of 1442905 is about 113.0002088387. Note that the first 3 decimals are identical.

The spelling of 1442905 in words is "one million, four hundred forty-two thousand, nine hundred five".