10403256 has 16 divisors (see below), whose sum is σ = 26008200. Its totient is φ = 3467744.

The previous prime is 10403251. The next prime is 10403311. The reversal of 10403256 is 65230401.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10403251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216711 + ... + 216758.

Almost surely, 2^10403256 is an apocalyptic number.

It is an amenable number.

10403256 is an abundant number, since it is smaller than the sum of its proper divisors (15604944).

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

10403256 is a wasteful number, since it uses less digits than its factorization.

10403256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433478 (or 433474 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 10403256 is about 3225.4078811834. The cubic root of 10403256 is about 218.3013535638.

Adding to 10403256 its reverse (65230401), we get a palindrome (75633657).

The spelling of 10403256 in words is "ten million, four hundred three thousand, two hundred fifty-six".