1020342394 has 4 divisors (see below), whose sum is σ = 1530513594. Its totient is φ = 510171196.

The previous prime is 1020342373. The next prime is 1020342403. The reversal of 1020342394 is 4932430201.

1020342394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 660747025 + 359595369 = 25705^2 + 18963^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255085597 + ... + 255085600.

Almost surely, 2^1020342394 is an apocalyptic number.

1020342394 is a deficient number, since it is larger than the sum of its proper divisors (510171200).

1020342394 is an equidigital number, since it uses as much as digits as its factorization.

1020342394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510171199.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1020342394 is about 31942.7987815720. The cubic root of 1020342394 is about 1006.7353314614.

Adding to 1020342394 its reverse (4932430201), we get a palindrome (5952772595).

The spelling of 1020342394 in words is "one billion, twenty million, three hundred forty-two thousand, three hundred ninety-four".