1940774769 has 16 divisors (see below), whose sum is σ = 2879305600. Its totient is φ = 1292012208.

The previous prime is 1940774767. The next prime is 1940774777. The reversal of 1940774769 is 9674770491.

It is not a de Polignac number, because 1940774769 - 2¹ = 1940774767 is a prime.

It is a super-2 number, since 2×1940774769² = 7533213407974006722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940774761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31549 + ... + 69834.

It is an arithmetic number, because the mean of its divisors is an integer number (179956600).

Almost surely, 2^1940774769 is an apocalyptic number.

It is an amenable number.

1940774769 is a deficient number, since it is larger than the sum of its proper divisors (938530831).

1940774769 is a wasteful number, since it uses less digits than its factorization.

1940774769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102101 (or 102095 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 54.

The square root of 1940774769 is about 44054.2253251604. The cubic root of 1940774769 is about 1247.3597110794.

The spelling of 1940774769 in words is "one billion, nine hundred forty million, seven hundred seventy-four thousand, seven hundred sixty-nine".