11979340 has 12 divisors (see below), whose sum is σ = 25156656. Its totient is φ = 4791728.

The previous prime is 11979293. The next prime is 11979347. The reversal of 11979340 is 4397911.

11979340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11979296 and 11979305.

It is not an unprimeable number, because it can be changed into a prime (11979347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299464 + ... + 299503.

It is an arithmetic number, because the mean of its divisors is an integer number (2096388).

Almost surely, 2^11979340 is an apocalyptic number.

11979340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11979340 is an abundant number, since it is smaller than the sum of its proper divisors (13177316).

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

11979340 is a wasteful number, since it uses less digits than its factorization.

11979340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598976 (or 598974 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 11979340 is about 3461.1183163827. The cubic root of 11979340 is about 228.8113852795.

The spelling of 11979340 in words is "eleven million, nine hundred seventy-nine thousand, three hundred forty".