1005120426 has 8 divisors (see below), whose sum is σ = 2010240864. Its totient is φ = 335040140.

The previous prime is 1005120377. The next prime is 1005120469. The reversal of 1005120426 is 6240215001.

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

1005120426 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83760030 + ... + 83760041.

It is an arithmetic number, because the mean of its divisors is an integer number (251280108).

Almost surely, 2^1005120426 is an apocalyptic number.

1005120426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1005120426 is a wasteful number, since it uses less digits than its factorization.

1005120426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167520076.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1005120426 is about 31703.6342711683. The cubic root of 1005120426 is about 1001.7039037298.

Adding to 1005120426 its reverse (6240215001), we get a palindrome (7245335427).

The spelling of 1005120426 in words is "one billion, five million, one hundred twenty thousand, four hundred twenty-six".