2857232 has 40 divisors (see below), whose sum is σ = 6416256. Its totient is φ = 1207296.

The previous prime is 2857223. The next prime is 2857237. The reversal of 2857232 is 2327582.

It is a junction number, because it is equal to n+sod(n) for n = 2857195 and 2857204.

It is not an unprimeable number, because it can be changed into a prime (2857237) 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, 10733 + ... + 10995.

2^2857232 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 2857232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3208128).

2857232 is an abundant number, since it is smaller than the sum of its proper divisors (3559024).

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

2857232 is a wasteful number, since it uses less digits than its factorization.

2857232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 369 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 2857232 is about 1690.3348780641. The cubic root of 2857232 is about 141.8998169244.

The spelling of 2857232 in words is "two million, eight hundred fifty-seven thousand, two hundred thirty-two".