1940066353 has 4 divisors (see below), whose sum is σ = 2024417088. Its totient is φ = 1855715620.

The previous prime is 1940066341. The next prime is 1940066357. The reversal of 1940066353 is 3536600491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1940066353 - 2⁵ = 1940066321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940066357) 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 3 ways as a sum of consecutive naturals, for example, 42175333 + ... + 42175378.

It is an arithmetic number, because the mean of its divisors is an integer number (506104272).

Almost surely, 2^1940066353 is an apocalyptic number.

It is an amenable number.

1940066353 is a deficient number, since it is larger than the sum of its proper divisors (84350735).

1940066353 is an equidigital number, since it uses as much as digits as its factorization.

1940066353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84350734.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 1940066353 is about 44046.1843182812. The cubic root of 1940066353 is about 1247.2079233967.

The spelling of 1940066353 in words is "one billion, nine hundred forty million, sixty-six thousand, three hundred fifty-three".