11387980 has 24 divisors (see below), whose sum is σ = 24055920. Its totient is φ = 4528320.

The previous prime is 11387953. The next prime is 11388017. The reversal of 11387980 is 8978311.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990 + ... + 5170.

It is an arithmetic number, because the mean of its divisors is an integer number (1002330).

Almost surely, 2^11387980 is an apocalyptic number.

11387980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11387980 is an abundant number, since it is smaller than the sum of its proper divisors (12667940).

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

11387980 is a wasteful number, since it uses less digits than its factorization.

11387980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369 (or 3367 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 11387980 is about 3374.6081253977. The cubic root of 11387980 is about 224.9825830139.

The spelling of 11387980 in words is "eleven million, three hundred eighty-seven thousand, nine hundred eighty".