1020440006 has 4 divisors (see below), whose sum is σ = 1530660012. Its totient is φ = 510220002.

The previous prime is 1020439997. The next prime is 1020440017. The reversal of 1020440006 is 6000440201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6000440201 = 7 ⋅857205743.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255110000 + ... + 255110003.

It is an arithmetic number, because the mean of its divisors is an integer number (382665003).

Almost surely, 2^1020440006 is an apocalyptic number.

1020440006 is a deficient number, since it is larger than the sum of its proper divisors (510220006).

1020440006 is an equidigital number, since it uses as much as digits as its factorization.

1020440006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510220005.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1020440006 is about 31944.3266637442. The cubic root of 1020440006 is about 1006.7674338603.

Adding to 1020440006 its reverse (6000440201), we get a palindrome (7020880207).

The spelling of 1020440006 in words is "one billion, twenty million, four hundred forty thousand, six".