10856420 has 12 divisors (see below), whose sum is σ = 22798524. Its totient is φ = 4342560.

The previous prime is 10856407. The next prime is 10856453. The reversal of 10856420 is 2465801.

It can be written as a sum of positive squares in 2 ways, for example, as 5721664 + 5134756 = 2392^2 + 2266^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10856420.

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 3 ways as a sum of consecutive naturals, for example, 271391 + ... + 271430.

It is an arithmetic number, because the mean of its divisors is an integer number (1899877).

Almost surely, 2^10856420 is an apocalyptic number.

10856420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10856420 is an abundant number, since it is smaller than the sum of its proper divisors (11942104).

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

10856420 is a wasteful number, since it uses less digits than its factorization.

10856420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542830 (or 542828 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 10856420 is about 3294.9081929547. The cubic root of 10856420 is about 221.4261346543.

The spelling of 10856420 in words is "ten million, eight hundred fifty-six thousand, four hundred twenty".