10390321 has 4 divisors (see below), whose sum is σ = 10937200. Its totient is φ = 9843444.

The previous prime is 10390307. The next prime is 10390327. The reversal of 10390321 is 12309301.

10390321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 10390321 - 2¹⁹ = 9866033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 546859 = 10390321 / (1 + 0 + 3 + 9 + 0 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10390327) 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, 273411 + ... + 273448.

It is an arithmetic number, because the mean of its divisors is an integer number (2734300).

Almost surely, 2^10390321 is an apocalyptic number.

It is an amenable number.

10390321 is a deficient number, since it is larger than the sum of its proper divisors (546879).

10390321 is an equidigital number, since it uses as much as digits as its factorization.

10390321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546878.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 10390321 is about 3223.4020847546. The cubic root of 10390321 is about 218.2108402629.

Adding to 10390321 its reverse (12309301), we get a palindrome (22699622).

The spelling of 10390321 in words is "ten million, three hundred ninety thousand, three hundred twenty-one".