1236432 has 20 divisors (see below), whose sum is σ = 3194240. Its totient is φ = 412128.

The previous prime is 1236419. The next prime is 1236439. The reversal of 1236432 is 2346321.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1236399 and 1236408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1236439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12832 + ... + 12927.

It is an arithmetic number, because the mean of its divisors is an integer number (159712).

2^1236432 is an apocalyptic number.

1236432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1236432 is an abundant number, since it is smaller than the sum of its proper divisors (1957808).

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

1236432 is a wasteful number, since it uses less digits than its factorization.

1236432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25770 (or 25764 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 1236432 is about 1111.9496391474. The cubic root of 1236432 is about 107.3305641643.

It can be divided in two parts, 123 and 6432, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 1236432 in words is "one million, two hundred thirty-six thousand, four hundred thirty-two".