1232406 has 24 divisors (see below), whose sum is σ = 3051984. Its totient is φ = 352080.

The previous prime is 1232401. The next prime is 1232411. The reversal of 1232406 is 6042321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1232401) and next prime (1232411).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4765 + ... + 5016.

It is an arithmetic number, because the mean of its divisors is an integer number (127166).

2^1232406 is an apocalyptic number.

1232406 is an abundant number, since it is smaller than the sum of its proper divisors (1819578).

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

1232406 is a wasteful number, since it uses less digits than its factorization.

1232406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9796 (or 9793 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1232406 is about 1110.1378292807. The cubic root of 1232406 is about 107.2139429217.

Adding to 1232406 its reverse (6042321), we get a palindrome (7274727).

The spelling of 1232406 in words is "one million, two hundred thirty-two thousand, four hundred six".