11345980 has 48 divisors (see below), whose sum is σ = 24837120. Its totient is φ = 4350528.

The previous prime is 11345977. The next prime is 11346001. The reversal of 11345980 is 8954311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67857 + ... + 68023.

It is an arithmetic number, because the mean of its divisors is an integer number (517440).

Almost surely, 2^11345980 is an apocalyptic number.

11345980 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 11345980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12418560).

11345980 is an abundant number, since it is smaller than the sum of its proper divisors (13491140).

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

11345980 is a wasteful number, since it uses less digits than its factorization.

11345980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 11345980 is about 3368.3794323087. The cubic root of 11345980 is about 224.7056562613.

The spelling of 11345980 in words is "eleven million, three hundred forty-five thousand, nine hundred eighty".