11942028 has 36 divisors (see below), whose sum is σ = 34499920. Its totient is φ = 3411936.

The previous prime is 11942027. The next prime is 11942039. The reversal of 11942028 is 82024911.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×11942028² = 285224065505568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11941992 and 11942010.

It is not an unprimeable number, because it can be changed into a prime (11942027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23443 + ... + 23946.

Almost surely, 2^11942028 is an apocalyptic number.

11942028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11942028 is an abundant number, since it is smaller than the sum of its proper divisors (22557892).

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

11942028 is a wasteful number, since it uses less digits than its factorization.

11942028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47406 (or 47401 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 11942028 is about 3455.7239473083. The cubic root of 11942028 is about 228.5735789232.

Adding to 11942028 its reverse (82024911), we get a palindrome (93966939).

The spelling of 11942028 in words is "eleven million, nine hundred forty-two thousand, twenty-eight".