11403072 has 56 divisors (see below), whose sum is σ = 33528000. Its totient is φ = 3800448.

The previous prime is 11403053. The next prime is 11403083. The reversal of 11403072 is 27030411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1572 + ... + 5027.

Almost surely, 2^11403072 is an apocalyptic number.

11403072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11403072 is an abundant number, since it is smaller than the sum of its proper divisors (22124928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11403072 is an equidigital number, since it uses as much as digits as its factorization.

11403072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6620 (or 6604 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 11403072 is about 3376.8434965216. The cubic root of 11403072 is about 225.0819257216.

Adding to 11403072 its reverse (27030411), we get a palindrome (38433483).

The spelling of 11403072 in words is "eleven million, four hundred three thousand, seventy-two".