11929880 has 16 divisors (see below), whose sum is σ = 26842320. Its totient is φ = 4771936.

The previous prime is 11929871. The next prime is 11929889. The reversal of 11929880 is 8892911.

It is an interprime number because it is at equal distance from previous prime (11929871) and next prime (11929889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11929889) 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, 149084 + ... + 149163.

It is an arithmetic number, because the mean of its divisors is an integer number (1677645).

Almost surely, 2^11929880 is an apocalyptic number.

11929880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11929880 is an abundant number, since it is smaller than the sum of its proper divisors (14912440).

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

11929880 is a wasteful number, since it uses less digits than its factorization.

11929880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298258 (or 298254 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 11929880 is about 3453.9658365421. The cubic root of 11929880 is about 228.4960473151.

The spelling of 11929880 in words is "eleven million, nine hundred twenty-nine thousand, eight hundred eighty".