2271740 has 24 divisors (see below), whose sum is σ = 4823952. Its totient is φ = 898560.

The previous prime is 2271721. The next prime is 2271743. The reversal of 2271740 is 471722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355 + ... + 2525.

It is an arithmetic number, because the mean of its divisors is an integer number (200998).

2^2271740 is an apocalyptic number.

2271740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2271740 is an abundant number, since it is smaller than the sum of its proper divisors (2552212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2271740 is a wasteful number, since it uses less digits than its factorization.

2271740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277 (or 1275 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 2271740 is about 1507.2292460008. The cubic root of 2271740 is about 131.4577541192.

The spelling of 2271740 in words is "two million, two hundred seventy-one thousand, seven hundred forty".