1940530271 has 4 divisors (see below), whose sum is σ = 1959743544. Its totient is φ = 1921317000.

The previous prime is 1940530261. The next prime is 1940530283. The reversal of 1940530271 is 1720350491.

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 1940530271 - 2¹⁰ = 1940529247 is a prime.

It is a super-3 number, since 3×1940530271³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940530261) 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, 9606485 + ... + 9606686.

It is an arithmetic number, because the mean of its divisors is an integer number (489935886).

Almost surely, 2^1940530271 is an apocalyptic number.

1940530271 is a deficient number, since it is larger than the sum of its proper divisors (19213273).

1940530271 is a wasteful number, since it uses less digits than its factorization.

1940530271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19213272.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1940530271 is about 44051.4502712453. The cubic root of 1940530271 is about 1247.3073282601.

The spelling of 1940530271 in words is "one billion, nine hundred forty million, five hundred thirty thousand, two hundred seventy-one".