2271432 has 64 divisors (see below), whose sum is σ = 6082560. Its totient is φ = 705600.

The previous prime is 2271427. The next prime is 2271433. The reversal of 2271432 is 2341722.

It is a junction number, because it is equal to n+sod(n) for n = 2271399 and 2271408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31957 + ... + 32027.

It is an arithmetic number, because the mean of its divisors is an integer number (95040).

2^2271432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2271432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3041280).

2271432 is an abundant number, since it is smaller than the sum of its proper divisors (3811128).

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

2271432 is a wasteful number, since it uses less digits than its factorization.

2271432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 150 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 2271432 is about 1507.1270682992. The cubic root of 2271432 is about 131.4518128850.

The spelling of 2271432 in words is "two million, two hundred seventy-one thousand, four hundred thirty-two".