1328999046 has 16 divisors (see below), whose sum is σ = 2659810608. Its totient is φ = 442697600.

The previous prime is 1328999033. The next prime is 1328999057. The reversal of 1328999046 is 6409998231.

It is a self number, because there is not a number n which added to its sum of digits gives 1328999046.

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 in 7 ways as a sum of consecutive naturals, for example, 65895 + ... + 83666.

It is an arithmetic number, because the mean of its divisors is an integer number (166238163).

Almost surely, 2^1328999046 is an apocalyptic number.

1328999046 is an abundant number, since it is smaller than the sum of its proper divisors (1330811562).

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

1328999046 is a wasteful number, since it uses less digits than its factorization.

1328999046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151047.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 1328999046 is about 36455.4391826515. The cubic root of 1328999046 is about 1099.4484965435.

The spelling of 1328999046 in words is "one billion, three hundred twenty-eight million, nine hundred ninety-nine thousand, forty-six".