12001950 has 72 divisors (see below), whose sum is σ = 32643000. Its totient is φ = 3161280.

The previous prime is 12001943. The next prime is 12001961. The reversal of 12001950 is 5910021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 66961 + ... + 67139.

It is an arithmetic number, because the mean of its divisors is an integer number (453375).

Almost surely, 2^12001950 is an apocalyptic number.

12001950 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 12001950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16321500).

12001950 is an abundant number, since it is smaller than the sum of its proper divisors (20641050).

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

12001950 is a wasteful number, since it uses less digits than its factorization.

12001950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 12001950 is about 3464.3830619607. The cubic root of 12001950 is about 228.9552489100.

Adding to 12001950 its reverse (5910021), we get a palindrome (17911971).

The spelling of 12001950 in words is "twelve million, one thousand, nine hundred fifty".