10409491 has 12 divisors (see below), whose sum is σ = 11174800. Its totient is φ = 9694080.

The previous prime is 10409479. The next prime is 10409533. The reversal of 10409491 is 19490401.

10409491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10409491 - 2¹¹ = 10407443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10409401) 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 11 ways as a sum of consecutive naturals, for example, 52210 + ... + 52408.

Almost surely, 2^10409491 is an apocalyptic number.

10409491 is a deficient number, since it is larger than the sum of its proper divisors (765309).

10409491 is a wasteful number, since it uses less digits than its factorization.

10409491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 10409491 is about 3226.3742808298. The cubic root of 10409491 is about 218.3449564868.

Adding to 10409491 its reverse (19490401), we get a palindrome (29899892).

The spelling of 10409491 in words is "ten million, four hundred nine thousand, four hundred ninety-one".