10409321 has 32 divisors (see below), whose sum is σ = 13023360. Its totient is φ = 8211456.

The previous prime is 10409303. The next prime is 10409339. The reversal of 10409321 is 12390401.

It is an interprime number because it is at equal distance from previous prime (10409303) and next prime (10409339).

It is a cyclic number.

It is not a de Polignac number, because 10409321 - 2²² = 6215017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10409293 and 10409302.

It is not an unprimeable number, because it can be changed into a prime (10409621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155330 + ... + 155396.

It is an arithmetic number, because the mean of its divisors is an integer number (406980).

Almost surely, 2^10409321 is an apocalyptic number.

It is an amenable number.

10409321 is a deficient number, since it is larger than the sum of its proper divisors (2614039).

10409321 is a wasteful number, since it uses less digits than its factorization.

10409321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 10409321 is about 3226.3479353597. The cubic root of 10409321 is about 218.3437678650.

Adding to 10409321 its reverse (12390401), we get a palindrome (22799722).

The spelling of 10409321 in words is "ten million, four hundred nine thousand, three hundred twenty-one".