1940417768 has 16 divisors (see below), whose sum is σ = 3706930980. Its totient is φ = 951902848.

The previous prime is 1940417767. The next prime is 1940417777. The reversal of 1940417768 is 8677140491.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1860887044 + 79530724 = 43138^2 + 8918^2 .

It is a super-2 number, since 2×1940417768² = 7530442228740203648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1940417767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2287805 + ... + 2288652.

Almost surely, 2^1940417768 is an apocalyptic number.

It is an amenable number.

1940417768 is a deficient number, since it is larger than the sum of its proper divisors (1766513212).

1940417768 is a wasteful number, since it uses less digits than its factorization.

1940417768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576516 (or 4576512 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 1940417768 is about 44050.1733027238. The cubic root of 1940417768 is about 1247.2832234178.

The spelling of 1940417768 in words is "one billion, nine hundred forty million, four hundred seventeen thousand, seven hundred sixty-eight".