1238432 has 36 divisors (see below), whose sum is σ = 2651670. Its totient is φ = 569088.

The previous prime is 1238431. The next prime is 1238437. The reversal of 1238432 is 2348321.

It can be written as a sum of positive squares in 3 ways, for example, as 929296 + 309136 = 964^2 + 556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1238398 and 1238407.

It is not an unprimeable number, because it can be changed into a prime (1238431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5294 + ... + 5522.

2^1238432 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 1238432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1325835).

1238432 is an abundant number, since it is smaller than the sum of its proper divisors (1413238).

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

1238432 is a wasteful number, since it uses less digits than its factorization.

1238432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 244 counting only the distinct ones).

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

The square root of 1238432 is about 1112.8485970697. The cubic root of 1238432 is about 107.3884041129.

The spelling of 1238432 in words is "one million, two hundred thirty-eight thousand, four hundred thirty-two".