1230432 has 48 divisors (see below), whose sum is σ = 3693312. Its totient is φ = 351360.

The previous prime is 1230401. The next prime is 1230433. The reversal of 1230432 is 2340321.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244 + ... + 1587.

It is an arithmetic number, because the mean of its divisors is an integer number (76944).

2^1230432 is an apocalyptic number.

1230432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1846656).

1230432 is an abundant number, since it is smaller than the sum of its proper divisors (2462880).

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

1230432 is a wasteful number, since it uses less digits than its factorization.

1230432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1843 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1230432 is about 1109.2483941841. The cubic root of 1230432 is about 107.1566692035.

Adding to 1230432 its reverse (2340321), we get a palindrome (3570753).

The spelling of 1230432 in words is "one million, two hundred thirty thousand, four hundred thirty-two".