10236381 has 4 divisors (see below), whose sum is σ = 13648512. Its totient is φ = 6824252.

The previous prime is 10236379. The next prime is 10236407. The reversal of 10236381 is 18363201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18363201 = 3 ⋅6121067.

It is a cyclic number.

It is not a de Polignac number, because 10236381 - 2¹ = 10236379 is a prime.

It is a super-2 number, since 2×10236381² = 209566991954322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10236371) by changing a digit.

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, 1706061 + ... + 1706066.

It is an arithmetic number, because the mean of its divisors is an integer number (3412128).

Almost surely, 2^10236381 is an apocalyptic number.

10236381 is the 2024-th centered pentagonal number.

It is an amenable number.

10236381 is a deficient number, since it is larger than the sum of its proper divisors (3412131).

10236381 is an equidigital number, since it uses as much as digits as its factorization.

10236381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412130.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 10236381 is about 3199.4344812795. The cubic root of 10236381 is about 217.1278243410.

Adding to 10236381 its reverse (18363201), we get a palindrome (28599582).

The spelling of 10236381 in words is "ten million, two hundred thirty-six thousand, three hundred eighty-one".