11870428 has 6 divisors (see below), whose sum is σ = 20773256. Its totient is φ = 5935212.

The previous prime is 11870393. The next prime is 11870431. The reversal of 11870428 is 82407811.

It is a self number, because there is not a number n which added to its sum of digits gives 11870428.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1483800 + ... + 1483807.

Almost surely, 2^11870428 is an apocalyptic number.

It is an amenable number.

11870428 is a deficient number, since it is larger than the sum of its proper divisors (8902828).

11870428 is a wasteful number, since it uses less digits than its factorization.

11870428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967611 (or 2967609 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 11870428 is about 3445.3487486755. The cubic root of 11870428 is about 228.1158485852.

The spelling of 11870428 in words is "eleven million, eight hundred seventy thousand, four hundred twenty-eight".