12740550 has 48 divisors (see below), whose sum is σ = 31856592. Its totient is φ = 3369600.

The previous prime is 12740549. The next prime is 12740573. The reversal of 12740550 is 5504721.

12740550 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12740550² = 324643228605000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12740550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23280 + ... + 23820.

It is an arithmetic number, because the mean of its divisors is an integer number (663679).

Almost surely, 2^12740550 is an apocalyptic number.

12740550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12740550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15928296).

12740550 is an abundant number, since it is smaller than the sum of its proper divisors (19116042).

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

12740550 is a wasteful number, since it uses less digits than its factorization.

12740550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 12740550 is about 3569.3907043079. The cubic root of 12740550 is about 233.5587051505.

The spelling of 12740550 in words is "twelve million, seven hundred forty thousand, five hundred fifty".