2431206 has 24 divisors (see below), whose sum is σ = 5438784. Its totient is φ = 784080.

The previous prime is 2431201. The next prime is 2431207. The reversal of 2431206 is 6021342.

It is a happy number.

It is a super-2 number, since 2×2431206² = 11821525228872, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2431201) 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, 1621 + ... + 2736.

It is an arithmetic number, because the mean of its divisors is an integer number (226616).

2^2431206 is an apocalyptic number.

2431206 is an abundant number, since it is smaller than the sum of its proper divisors (3007578).

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

2431206 is a wasteful number, since it uses less digits than its factorization.

2431206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396 (or 4393 counting only the distinct ones).

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

The square root of 2431206 is about 1559.2325035093. The cubic root of 2431206 is about 134.4643797641.

Adding to 2431206 its reverse (6021342), we get a palindrome (8452548).

The spelling of 2431206 in words is "two million, four hundred thirty-one thousand, two hundred six".