11385780 has 48 divisors (see below), whose sum is σ = 36435840. Its totient is φ = 2602368.

The previous prime is 11385749. The next prime is 11385791. The reversal of 11385780 is 8758311.

It is a nialpdrome in base 15.

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, 13135 + ... + 13974.

It is an arithmetic number, because the mean of its divisors is an integer number (759080).

Almost surely, 2^11385780 is an apocalyptic number.

11385780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11385780 is an abundant number, since it is smaller than the sum of its proper divisors (25050060).

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

11385780 is a wasteful number, since it uses less digits than its factorization.

11385780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27128 (or 27126 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 11385780 is about 3374.2821458793. The cubic root of 11385780 is about 224.9680942413.

The spelling of 11385780 in words is "eleven million, three hundred eighty-five thousand, seven hundred eighty".