2271738 has 24 divisors (see below), whose sum is σ = 5285952. Its totient is φ = 648984.

The previous prime is 2271721. The next prime is 2271743. The reversal of 2271738 is 8371722.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3570 + ... + 4157.

It is an arithmetic number, because the mean of its divisors is an integer number (220248).

2^2271738 is an apocalyptic number.

2271738 is an abundant number, since it is smaller than the sum of its proper divisors (3014214).

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

2271738 is a wasteful number, since it uses less digits than its factorization.

2271738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746 (or 7739 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 2271738 is about 1507.2285825315. The cubic root of 2271738 is about 131.4577155415.

The spelling of 2271738 in words is "two million, two hundred seventy-one thousand, seven hundred thirty-eight".