10402403 has 4 divisors (see below), whose sum is σ = 11348088. Its totient is φ = 9456720.

The previous prime is 10402361. The next prime is 10402411. The reversal of 10402403 is 30420401.

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

It is a cyclic number.

It is not a de Polignac number, because 10402403 - 2¹² = 10398307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10402493) 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, 472826 + ... + 472847.

It is an arithmetic number, because the mean of its divisors is an integer number (2837022).

Almost surely, 2^10402403 is an apocalyptic number.

10402403 is a deficient number, since it is larger than the sum of its proper divisors (945685).

10402403 is an equidigital number, since it uses as much as digits as its factorization.

10402403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945684.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 10402403 is about 3225.2756471347. The cubic root of 10402403 is about 218.2953869656.

Adding to 10402403 its reverse (30420401), we get a palindrome (40822804).

It can be divided in two parts, 1040 and 2403, that added together give a palindrome (3443).

The spelling of 10402403 in words is "ten million, four hundred two thousand, four hundred three".