11840428 has 12 divisors (see below), whose sum is σ = 21161952. Its totient is φ = 5794160.

The previous prime is 11840393. The next prime is 11840429. The reversal of 11840428 is 82404811.

It is a junction number, because it is equal to n+sod(n) for n = 11840396 and 11840405.

It is not an unprimeable number, because it can be changed into a prime (11840429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31303 + ... + 31678.

It is an arithmetic number, because the mean of its divisors is an integer number (1763496).

Almost surely, 2^11840428 is an apocalyptic number.

It is an amenable number.

11840428 is a deficient number, since it is larger than the sum of its proper divisors (9321524).

11840428 is a wasteful number, since it uses less digits than its factorization.

11840428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63032 (or 63030 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 11840428 is about 3440.9922987417. The cubic root of 11840428 is about 227.9235149217.

The spelling of 11840428 in words is "eleven million, eight hundred forty thousand, four hundred twenty-eight".