10280403 has 12 divisors (see below), whose sum is σ = 16970928. Its totient is φ = 5874480.

The previous prime is 10280383. The next prime is 10280423. The reversal of 10280403 is 30408201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10280383) and next prime (10280423).

It is not a de Polignac number, because 10280403 - 2¹² = 10276307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10280423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81528 + ... + 81653.

It is an arithmetic number, because the mean of its divisors is an integer number (1414244).

Almost surely, 2^10280403 is an apocalyptic number.

10280403 is a deficient number, since it is larger than the sum of its proper divisors (6690525).

10280403 is a wasteful number, since it uses less digits than its factorization.

10280403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163194 (or 163191 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 10280403 is about 3206.3067538837. The cubic root of 10280403 is about 217.4386350862.

Adding to 10280403 its reverse (30408201), we get a palindrome (40688604).

The spelling of 10280403 in words is "ten million, two hundred eighty thousand, four hundred three".