10820380 has 24 divisors (see below), whose sum is σ = 22881600. Its totient is φ = 4297920.

The previous prime is 10820377. The next prime is 10820399. The reversal of 10820380 is 8302801.

It is a congruent number.

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, 1165 + ... + 4795.

It is an arithmetic number, because the mean of its divisors is an integer number (953400).

Almost surely, 2^10820380 is an apocalyptic number.

10820380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10820380 is an abundant number, since it is smaller than the sum of its proper divisors (12061220).

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

10820380 is a wasteful number, since it uses less digits than its factorization.

10820380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789 (or 3787 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 10820380 is about 3289.4346018731. The cubic root of 10820380 is about 221.1808406310.

The spelling of 10820380 in words is "ten million, eight hundred twenty thousand, three hundred eighty".