1283432 has 16 divisors (see below), whose sum is σ = 2548260. Its totient is φ = 603904.

The previous prime is 1283417. The next prime is 1283437. The reversal of 1283432 is 2343821.

It can be written as a sum of positive squares in 2 ways, for example, as 1240996 + 42436 = 1114^2 + 206^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1283398 and 1283407.

It is not an unprimeable number, because it can be changed into a prime (1283437) 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, 4583 + ... + 4854.

2^1283432 is an apocalyptic number.

It is an amenable number.

1283432 is a deficient number, since it is larger than the sum of its proper divisors (1264828).

1283432 is a wasteful number, since it uses less digits than its factorization.

1283432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460 (or 9456 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 1283432 is about 1132.8865786124. The cubic root of 1283432 is about 108.6736584927.

It can be divided in two parts, 128343 and 2, that multiplied together give a triangular number (256686 = T₇₁₆).

The spelling of 1283432 in words is "one million, two hundred eighty-three thousand, four hundred thirty-two".