2257432 has 16 divisors (see below), whose sum is σ = 4258800. Its totient is φ = 1121760.

The previous prime is 2257403. The next prime is 2257439. The reversal of 2257432 is 2347522.

It is a junction number, because it is equal to n+sod(n) for n = 2257397 and 2257406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257439) 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, 669 + ... + 2227.

It is an arithmetic number, because the mean of its divisors is an integer number (266175).

2^2257432 is an apocalyptic number.

It is an amenable number.

2257432 is a deficient number, since it is larger than the sum of its proper divisors (2001368).

2257432 is a wasteful number, since it uses less digits than its factorization.

2257432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746 (or 1742 counting only the distinct ones).

The product of its digits is 3360, while the sum is 25.

The square root of 2257432 is about 1502.4752909782. The cubic root of 2257432 is about 131.1811878143.

The spelling of 2257432 in words is "two million, two hundred fifty-seven thousand, four hundred thirty-two".