12949500 has 96 divisors (see below), whose sum is σ = 38525760. Its totient is φ = 3379200.

The previous prime is 12949499. The next prime is 12949501. The reversal of 12949500 is 594921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12949499) and next prime (12949501).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12949501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133452 + ... + 133548.

It is an arithmetic number, because the mean of its divisors is an integer number (401310).

Almost surely, 2^12949500 is an apocalyptic number.

12949500 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 12949500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19262880).

12949500 is an abundant number, since it is smaller than the sum of its proper divisors (25576260).

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

12949500 is a wasteful number, since it uses less digits than its factorization.

12949500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12949500 is about 3598.5413711669. The cubic root of 12949500 is about 234.8286059757.

The spelling of 12949500 in words is "twelve million, nine hundred forty-nine thousand, five hundred".