11943380 has 12 divisors (see below), whose sum is σ = 25081140. Its totient is φ = 4777344.

The previous prime is 11943377. The next prime is 11943397. The reversal of 11943380 is 8334911.

It can be written as a sum of positive squares in 2 ways, for example, as 2033476 + 9909904 = 1426^2 + 3148^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298565 + ... + 298604.

It is an arithmetic number, because the mean of its divisors is an integer number (2090095).

Almost surely, 2^11943380 is an apocalyptic number.

11943380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11943380 is an abundant number, since it is smaller than the sum of its proper divisors (13137760).

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

11943380 is a wasteful number, since it uses less digits than its factorization.

11943380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597178 (or 597176 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 11943380 is about 3455.9195592490. The cubic root of 11943380 is about 228.5822044771.

The spelling of 11943380 in words is "eleven million, nine hundred forty-three thousand, three hundred eighty".