10381656 has 16 divisors (see below), whose sum is σ = 25954200. Its totient is φ = 3460544.

The previous prime is 10381607. The next prime is 10381661. The reversal of 10381656 is 65618301.

10381656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

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, 216261 + ... + 216308.

Almost surely, 2^10381656 is an apocalyptic number.

It is an amenable number.

10381656 is an abundant number, since it is smaller than the sum of its proper divisors (15572544).

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

10381656 is a wasteful number, since it uses less digits than its factorization.

10381656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432578 (or 432574 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 10381656 is about 3222.0577276020. The cubic root of 10381656 is about 218.1501644736.

Adding to 10381656 its reverse (65618301), we get a palindrome (75999957).

The spelling of 10381656 in words is "ten million, three hundred eighty-one thousand, six hundred fifty-six".