10256980 has 12 divisors (see below), whose sum is σ = 21539700. Its totient is φ = 4102784.

The previous prime is 10256947. The next prime is 10256993. The reversal of 10256980 is 8965201.

It can be written as a sum of positive squares in 2 ways, for example, as 2782224 + 7474756 = 1668^2 + 2734^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256405 + ... + 256444.

It is an arithmetic number, because the mean of its divisors is an integer number (1794975).

Almost surely, 2^10256980 is an apocalyptic number.

10256980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10256980 is an abundant number, since it is smaller than the sum of its proper divisors (11282720).

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

10256980 is a wasteful number, since it uses less digits than its factorization.

10256980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512858 (or 512856 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 10256980 is about 3202.6520260559. The cubic root of 10256980 is about 217.2733711989.

It can be divided in two parts, 10256 and 980, that added together give a square (11236 = 106²).

The spelling of 10256980 in words is "ten million, two hundred fifty-six thousand, nine hundred eighty".