10385381 has 4 divisors (see below), whose sum is σ = 10932000. Its totient is φ = 9838764.

The previous prime is 10385377. The next prime is 10385399. The reversal of 10385381 is 18358301.

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.

It is a cyclic number.

It is not a de Polignac number, because 10385381 - 2² = 10385377 is a prime.

It is a super-2 number, since 2×10385381² = 215712277030322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10385371) 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, 273281 + ... + 273318.

It is an arithmetic number, because the mean of its divisors is an integer number (2733000).

Almost surely, 2^10385381 is an apocalyptic number.

It is an amenable number.

10385381 is a deficient number, since it is larger than the sum of its proper divisors (546619).

10385381 is an equidigital number, since it uses as much as digits as its factorization.

10385381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546618.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 10385381 is about 3222.6357225104. The cubic root of 10385381 is about 218.1762525464.

The spelling of 10385381 in words is "ten million, three hundred eighty-five thousand, three hundred eighty-one".