10420339409 has 4 divisors (see below), whose sum is σ = 10512554916. Its totient is φ = 10328123904.

The previous prime is 10420339399. The next prime is 10420339463. The reversal of 10420339409 is 90493302401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90493302401 = 171049 ⋅529049.

It can be written as a sum of positive squares in 2 ways, for example, as 2486518225 + 7933821184 = 49865^2 + 89072^2 .

It is a cyclic number.

It is not a de Polignac number, because 10420339409 - 2⁴ = 10420339393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10420330409) 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, 46107584 + ... + 46107809.

It is an arithmetic number, because the mean of its divisors is an integer number (2628138729).

Almost surely, 2^10420339409 is an apocalyptic number.

It is an amenable number.

10420339409 is a deficient number, since it is larger than the sum of its proper divisors (92215507).

10420339409 is an equidigital number, since it uses as much as digits as its factorization.

10420339409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92215506.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 10420339409 in words is "ten billion, four hundred twenty million, three hundred thirty-nine thousand, four hundred nine".