12418040 has 32 divisors (see below), whose sum is σ = 28064880. Its totient is φ = 4945152.

The previous prime is 12418019. The next prime is 12418067. The reversal of 12418040 is 4081421.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10772 + ... + 11868.

Almost surely, 2^12418040 is an apocalyptic number.

12418040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12418040 is an abundant number, since it is smaller than the sum of its proper divisors (15646840).

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

12418040 is a wasteful number, since it uses less digits than its factorization.

12418040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 12418040 is about 3523.9239492361. The cubic root of 12418040 is about 231.5710961888.

Adding to 12418040 its reverse (4081421), we get a palindrome (16499461).

The spelling of 12418040 in words is "twelve million, four hundred eighteen thousand, forty".