1029903394 has 16 divisors (see below), whose sum is σ = 1672889400. Its totient is φ = 472711680.

The previous prime is 1029903383. The next prime is 1029903397. The reversal of 1029903394 is 4933099201.

It can be written as a sum of positive squares in 4 ways, for example, as 550512369 + 479391025 = 23463^2 + 21895^2 .

It is not an unprimeable number, because it can be changed into a prime (1029903397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104719 + ... + 114130.

Almost surely, 2^1029903394 is an apocalyptic number.

1029903394 is a deficient number, since it is larger than the sum of its proper divisors (642986006).

1029903394 is a wasteful number, since it uses less digits than its factorization.

1029903394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219045.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 1029903394 is about 32092.1079706522. The cubic root of 1029903394 is about 1009.8700594197.

The spelling of 1029903394 in words is "one billion, twenty-nine million, nine hundred three thousand, three hundred ninety-four".