1940247706 has 8 divisors (see below), whose sum is σ = 3081569940. Its totient is φ = 913057728.

The previous prime is 1940247703. The next prime is 1940247713. The reversal of 1940247706 is 6077420491.

It can be written as a sum of positive squares in 2 ways, for example, as 1499625625 + 440622081 = 38725^2 + 20991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1940247706² = 7529122321276524872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1940247703) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28533021 + ... + 28533088.

Almost surely, 2^1940247706 is an apocalyptic number.

1940247706 is a deficient number, since it is larger than the sum of its proper divisors (1141322234).

1940247706 is a wasteful number, since it uses less digits than its factorization.

1940247706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57066128.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 1940247706 is about 44048.2429388506. The cubic root of 1940247706 is about 1247.2467842413.

The spelling of 1940247706 in words is "one billion, nine hundred forty million, two hundred forty-seven thousand, seven hundred six".