12462440 has 16 divisors (see below), whose sum is σ = 28040580. Its totient is φ = 4984960.

The previous prime is 12462433. The next prime is 12462449. The reversal of 12462440 is 4426421.

12462440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12348196 + 114244 = 3514^2 + 338^2 .

It is not an unprimeable number, because it can be changed into a prime (12462449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155741 + ... + 155820.

Almost surely, 2^12462440 is an apocalyptic number.

12462440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12462440 is an abundant number, since it is smaller than the sum of its proper divisors (15578140).

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

12462440 is a wasteful number, since it uses less digits than its factorization.

12462440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311572 (or 311568 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 12462440 is about 3530.2181235725. The cubic root of 12462440 is about 231.8467576997.

Adding to 12462440 its reverse (4426421), we get a palindrome (16888861).

The spelling of 12462440 in words is "twelve million, four hundred sixty-two thousand, four hundred forty".