1442620285 has 4 divisors (see below), whose sum is σ = 1731144348. Its totient is φ = 1154096224.

The previous prime is 1442620259. The next prime is 1442620307. The reversal of 1442620285 is 5820262441.

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

It can be written as a sum of positive squares in 2 ways, for example, as 833419161 + 609201124 = 28869^2 + 24682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442620285 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 1442620285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144262024 + ... + 144262033.

It is an arithmetic number, because the mean of its divisors is an integer number (432786087).

Almost surely, 2^1442620285 is an apocalyptic number.

It is an amenable number.

1442620285 is a deficient number, since it is larger than the sum of its proper divisors (288524063).

1442620285 is an equidigital number, since it uses as much as digits as its factorization.

1442620285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288524062.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 1442620285 is about 37981.8415167037. The cubic root of 1442620285 is about 1129.9277592369.

The spelling of 1442620285 in words is "one billion, four hundred forty-two million, six hundred twenty thousand, two hundred eighty-five".