1940308842 has 32 divisors (see below), whose sum is σ = 4262469120. Its totient is φ = 586087920.

The previous prime is 1940308757. The next prime is 1940308873. The reversal of 1940308842 is 2488030491.

It is a self number, because there is not a number n which added to its sum of digits gives 1940308842.

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 15 ways as a sum of consecutive naturals, for example, 367384 + ... + 372627.

It is an arithmetic number, because the mean of its divisors is an integer number (133202160).

Almost surely, 2^1940308842 is an apocalyptic number.

1940308842 is an abundant number, since it is smaller than the sum of its proper divisors (2322160278).

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

1940308842 is a wasteful number, since it uses less digits than its factorization.

1940308842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740058.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1940308842 is about 44048.9368997709. The cubic root of 1940308842 is about 1247.2598840942.

The spelling of 1940308842 in words is "one billion, nine hundred forty million, three hundred eight thousand, eight hundred forty-two".