12415040 has 56 divisors (see below), whose sum is σ = 32260032. Its totient is φ = 4513280.

The previous prime is 12415031. The next prime is 12415043. The reversal of 12415040 is 4051421.

It is not an unprimeable number, because it can be changed into a prime (12415043) 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, 1757 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (576072).

Almost surely, 2^12415040 is an apocalyptic number.

12415040 is a gapful number since it is divisible by the number (10) 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 12415040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16130016).

12415040 is an abundant number, since it is smaller than the sum of its proper divisors (19844992).

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

12415040 is a wasteful number, since it uses less digits than its factorization.

12415040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555 (or 3545 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12415040 is about 3523.4982616712. The cubic root of 12415040 is about 231.5524467283.

Adding to 12415040 its reverse (4051421), we get a palindrome (16466461).

The spelling of 12415040 in words is "twelve million, four hundred fifteen thousand, forty".