1940714729 has 4 divisors (see below), whose sum is σ = 1940968260. Its totient is φ = 1940461200.

The previous prime is 1940714653. The next prime is 1940714753. The reversal of 1940714729 is 9274170491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9274170491 = 181 ⋅51238511.

It can be written as a sum of positive squares in 2 ways, for example, as 1487876329 + 452838400 = 38573^2 + 21280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1940714729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1940714729.

It is not an unprimeable number, because it can be changed into a prime (1940714759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114914 + ... + 130715.

It is an arithmetic number, because the mean of its divisors is an integer number (485242065).

Almost surely, 2^1940714729 is an apocalyptic number.

It is an amenable number.

1940714729 is a deficient number, since it is larger than the sum of its proper divisors (253531).

1940714729 is an equidigital number, since it uses as much as digits as its factorization.

1940714729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253530.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 1940714729 is about 44053.5438869565. The cubic root of 1940714729 is about 1247.3468481324.

The spelling of 1940714729 in words is "one billion, nine hundred forty million, seven hundred fourteen thousand, seven hundred twenty-nine".