12616240 has 80 divisors (see below), whose sum is σ = 36122688. Its totient is φ = 3990528.

The previous prime is 12616237. The next prime is 12616271. The reversal of 12616240 is 4261621.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6414 + ... + 8146.

Almost surely, 2^12616240 is an apocalyptic number.

12616240 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 12616240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18061344).

12616240 is an abundant number, since it is smaller than the sum of its proper divisors (23506448).

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

12616240 is a wasteful number, since it uses less digits than its factorization.

12616240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12616240 is about 3551.9346840842. The cubic root of 12616240 is about 232.7966076115.

Adding to 12616240 its reverse (4261621), we get a palindrome (16877861).

The spelling of 12616240 in words is "twelve million, six hundred sixteen thousand, two hundred forty".