10403242394 has 4 divisors (see below), whose sum is σ = 15604863594. Its totient is φ = 5201621196.

The previous prime is 10403242393. The next prime is 10403242417. The reversal of 10403242394 is 49324230401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49324230401 = 61 ⋅808593941.

It can be written as a sum of positive squares in only one way, i.e., 5492736769 + 4910505625 = 74113^2 + 70075^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10403242394.

It is not an unprimeable number, because it can be changed into a prime (10403242391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2600810597 + ... + 2600810600.

Almost surely, 2^10403242394 is an apocalyptic number.

10403242394 is a deficient number, since it is larger than the sum of its proper divisors (5201621200).

10403242394 is an equidigital number, since it uses as much as digits as its factorization.

10403242394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201621199.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 10403242394 its reverse (49324230401), we get a palindrome (59727472795).

The spelling of 10403242394 in words is "ten billion, four hundred three million, two hundred forty-two thousand, three hundred ninety-four".