1940271 has 4 divisors (see below), whose sum is σ = 2587032. Its totient is φ = 1293512.

The previous prime is 1940269. The next prime is 1940293. The reversal of 1940271 is 1720491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1720491 = 3 ⋅573497.

It is a cyclic number.

It is not a de Polignac number, because 1940271 - 2¹ = 1940269 is a prime.

It is a super-3 number, since 3×1940271³ = 21913332702739567533, which contains 333 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940201) 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, 323376 + ... + 323381.

It is an arithmetic number, because the mean of its divisors is an integer number (646758).

2^1940271 is an apocalyptic number.

1940271 is a deficient number, since it is larger than the sum of its proper divisors (646761).

1940271 is an equidigital number, since it uses as much as digits as its factorization.

1940271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646760.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1940271 is about 1392.9361076517. The cubic root of 1940271 is about 124.7251775571.

It can be divided in two parts, 1940 and 271, that added together give a triangular number (2211 = T₆₆).

The spelling of 1940271 in words is "one million, nine hundred forty thousand, two hundred seventy-one".