1940500689 has 16 divisors (see below), whose sum is σ = 2664395712. Its totient is φ = 1255520448.

The previous prime is 1940500637. The next prime is 1940500711. The reversal of 1940500689 is 9860050491.

1940500689 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1940500689 - 2⁷ = 1940500561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1940500689.

It is not an unprimeable number, because it can be changed into a prime (1940500589) 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, 27654 + ... + 68159.

It is an arithmetic number, because the mean of its divisors is an integer number (166524732).

Almost surely, 2^1940500689 is an apocalyptic number.

It is an amenable number.

1940500689 is a deficient number, since it is larger than the sum of its proper divisors (723895023).

1940500689 is a wasteful number, since it uses less digits than its factorization.

1940500689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96016.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1940500689 is about 44051.1145034947. The cubic root of 1940500689 is about 1247.3009901243.

The spelling of 1940500689 in words is "one billion, nine hundred forty million, five hundred thousand, six hundred eighty-nine".