11959380 has 48 divisors (see below), whose sum is σ = 37208640. Its totient is φ = 3189024.

The previous prime is 11959369. The next prime is 11959391. The reversal of 11959380 is 8395911.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11959369) and next prime (11959391).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10534 + ... + 11613.

It is an arithmetic number, because the mean of its divisors is an integer number (775180).

Almost surely, 2^11959380 is an apocalyptic number.

11959380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11959380 is an abundant number, since it is smaller than the sum of its proper divisors (25249260).

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

11959380 is a wasteful number, since it uses less digits than its factorization.

11959380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22165 (or 22157 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 11959380 is about 3458.2336531819. The cubic root of 11959380 is about 228.6842326385.

The spelling of 11959380 in words is "eleven million, nine hundred fifty-nine thousand, three hundred eighty".