11980356 has 24 divisors (see below), whose sum is σ = 28136640. Its totient is φ = 3967392.

The previous prime is 11980313. The next prime is 11980357. The reversal of 11980356 is 65308911.

11980356 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11980357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (1172360).

Almost surely, 2^11980356 is an apocalyptic number.

It is an amenable number.

11980356 is an abundant number, since it is smaller than the sum of its proper divisors (16156284).

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

11980356 is a wasteful number, since it uses less digits than its factorization.

11980356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523 (or 6521 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 11980356 is about 3461.2650866410. The cubic root of 11980356 is about 228.8178537994.

The spelling of 11980356 in words is "eleven million, nine hundred eighty thousand, three hundred fifty-six".