10381556 has 12 divisors (see below), whose sum is σ = 18957792. Its totient is φ = 4965048.

The previous prime is 10381541. The next prime is 10381561. The reversal of 10381556 is 65518301.

It is a super-2 number, since 2×10381556² = 215553409962272, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 56330 + ... + 56513.

It is an arithmetic number, because the mean of its divisors is an integer number (1579816).

Almost surely, 2^10381556 is an apocalyptic number.

It is an amenable number.

10381556 is a deficient number, since it is larger than the sum of its proper divisors (8576236).

10381556 is a wasteful number, since it uses less digits than its factorization.

10381556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112870 (or 112868 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 10381556 is about 3222.0422095311. The cubic root of 10381556 is about 218.1494640366.

Adding to 10381556 its reverse (65518301), we get a palindrome (75899857).

The spelling of 10381556 in words is "ten million, three hundred eighty-one thousand, five hundred fifty-six".