11942980 has 48 divisors (see below), whose sum is σ = 29917440. Its totient is φ = 3915648.

The previous prime is 11942977. The next prime is 11942989. The reversal of 11942980 is 8924911.

It is not an unprimeable number, because it can be changed into a prime (11942989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366 + ... + 5074.

It is an arithmetic number, because the mean of its divisors is an integer number (623280).

Almost surely, 2^11942980 is an apocalyptic number.

11942980 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 11942980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14958720).

11942980 is an abundant number, since it is smaller than the sum of its proper divisors (17974460).

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

11942980 is a wasteful number, since it uses less digits than its factorization.

11942980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748 (or 3746 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 11942980 is about 3455.8616870471. The cubic root of 11942980 is about 228.5796526059.

The spelling of 11942980 in words is "eleven million, nine hundred forty-two thousand, nine hundred eighty".