11378403 has 6 divisors (see below), whose sum is σ = 16435484. Its totient is φ = 7585596.

The previous prime is 11378377. The next prime is 11378407. The reversal of 11378403 is 30487311.

It is not a de Polignac number, because 11378403 - 2¹⁶ = 11312867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11378407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 632125 + ... + 632142.

Almost surely, 2^11378403 is an apocalyptic number.

11378403 is a deficient number, since it is larger than the sum of its proper divisors (5057081).

11378403 is a wasteful number, since it uses less digits than its factorization.

11378403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264273 (or 1264270 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 11378403 is about 3373.1888473668. The cubic root of 11378403 is about 224.9194971262.

It can be divided in two parts, 11378 and 403, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 11378403 in words is "eleven million, three hundred seventy-eight thousand, four hundred three".