10949381 has 4 divisors (see below), whose sum is σ = 10956000. Its totient is φ = 10942764.

The previous prime is 10949363. The next prime is 10949383. The reversal of 10949381 is 18394901.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10949381 - 2¹⁴ = 10932997 is a prime.

It is a super-2 number, since 2×10949381² = 239777888566322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10949383) 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, 1640 + ... + 4958.

It is an arithmetic number, because the mean of its divisors is an integer number (2739000).

Almost surely, 2^10949381 is an apocalyptic number.

It is an amenable number.

10949381 is a deficient number, since it is larger than the sum of its proper divisors (6619).

10949381 is an equidigital number, since it uses as much as digits as its factorization.

10949381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6618.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 10949381 is about 3308.9848896603. The cubic root of 10949381 is about 222.0563461120.

The spelling of 10949381 in words is "ten million, nine hundred forty-nine thousand, three hundred eighty-one".