1940055011 has 4 divisors (see below), whose sum is σ = 2054175912. Its totient is φ = 1825934112.

The previous prime is 1940054981. The next prime is 1940055023. The reversal of 1940055011 is 1105500491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1940055011 - 2¹⁴ = 1940038627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940058011) 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, 57060425 + ... + 57060458.

It is an arithmetic number, because the mean of its divisors is an integer number (513543978).

Almost surely, 2^1940055011 is an apocalyptic number.

1940055011 is a deficient number, since it is larger than the sum of its proper divisors (114120901).

1940055011 is a wasteful number, since it uses less digits than its factorization.

1940055011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114120900.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1940055011 is about 44046.0555668723. The cubic root of 1940055011 is about 1247.2054929197.

The spelling of 1940055011 in words is "one billion, nine hundred forty million, fifty-five thousand, eleven".