10490309 has 4 divisors (see below), whose sum is σ = 11107404. Its totient is φ = 9873216.

The previous prime is 10490297. The next prime is 10490317. The reversal of 10490309 is 90309401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6300100 + 4190209 = 2510^2 + 2047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10490309 is a prime.

It is a super-2 number, since 2×10490309² = 220093165830962, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10490329) 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, 308522 + ... + 308555.

It is an arithmetic number, because the mean of its divisors is an integer number (2776851).

Almost surely, 2^10490309 is an apocalyptic number.

It is an amenable number.

10490309 is a deficient number, since it is larger than the sum of its proper divisors (617095).

10490309 is an equidigital number, since it uses as much as digits as its factorization.

10490309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617094.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 10490309 is about 3238.8746502451. The cubic root of 10490309 is about 218.9085681309.

The spelling of 10490309 in words is "ten million, four hundred ninety thousand, three hundred nine".