1243432 has 16 divisors (see below), whose sum is σ = 2381760. Its totient is φ = 608304.

The previous prime is 1243427. The next prime is 1243439. The reversal of 1243432 is 2343421.

It is a super-2 number, since 2×1243432² = 3092246277248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243439) 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, 1278 + ... + 2029.

It is an arithmetic number, because the mean of its divisors is an integer number (148860).

2^1243432 is an apocalyptic number.

It is an amenable number.

1243432 is a deficient number, since it is larger than the sum of its proper divisors (1138328).

1243432 is a wasteful number, since it uses less digits than its factorization.

1243432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360 (or 3356 counting only the distinct ones).

The product of its digits is 576, while the sum is 19.

The square root of 1243432 is about 1115.0928212485. The cubic root of 1243432 is about 107.5327320553.

Adding to 1243432 its reverse (2343421), we get a palindrome (3586853).

The spelling of 1243432 in words is "one million, two hundred forty-three thousand, four hundred thirty-two".