10402256 has 30 divisors (see below), whose sum is σ = 21085890. Its totient is φ = 4970944.

The previous prime is 10402247. The next prime is 10402277. The reversal of 10402256 is 65220401.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10368400 + 33856 = 3220^2 + 184^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 7850 + ... + 9078.

It is an arithmetic number, because the mean of its divisors is an integer number (702863).

Almost surely, 2^10402256 is an apocalyptic number.

10402256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10402256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10542945).

10402256 is an abundant number, since it is smaller than the sum of its proper divisors (10683634).

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

10402256 is a wasteful number, since it uses less digits than its factorization.

10402256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 10402256 is about 3225.2528583043. The cubic root of 10402256 is about 218.2943586913.

Adding to 10402256 its reverse (65220401), we get a palindrome (75622657).

The spelling of 10402256 in words is "ten million, four hundred two thousand, two hundred fifty-six".