12949580 has 48 divisors (see below), whose sum is σ = 32913216. Its totient is φ = 4177920.

The previous prime is 12949571. The next prime is 12949603. The reversal of 12949580 is 8594921.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 341 + ... + 5100.

It is an arithmetic number, because the mean of its divisors is an integer number (685692).

Almost surely, 2^12949580 is an apocalyptic number.

12949580 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 12949580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16456608).

12949580 is an abundant number, since it is smaller than the sum of its proper divisors (19963636).

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

12949580 is a wasteful number, since it uses less digits than its factorization.

12949580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474 (or 5472 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 12949580 is about 3598.5524867646. The cubic root of 12949580 is about 234.8290895529.

The spelling of 12949580 in words is "twelve million, nine hundred forty-nine thousand, five hundred eighty".