1020340442 has 32 divisors (see below), whose sum is σ = 1770548544. Its totient is φ = 435846400.

The previous prime is 1020340397. The next prime is 1020340469. The reversal of 1020340442 is 2440430201.

1020340442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305393 + ... + 308715.

It is an arithmetic number, because the mean of its divisors is an integer number (55329642).

Almost surely, 2^1020340442 is an apocalyptic number.

1020340442 is a deficient number, since it is larger than the sum of its proper divisors (750208102).

1020340442 is a wasteful number, since it uses less digits than its factorization.

1020340442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4174.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1020340442 is about 31942.7682269399. The cubic root of 1020340442 is about 1006.7346894714.

Adding to 1020340442 its reverse (2440430201), we get a palindrome (3460770643).

The spelling of 1020340442 in words is "one billion, twenty million, three hundred forty thousand, four hundred forty-two".