11642428 has 12 divisors (see below), whose sum is σ = 23284912. Its totient is φ = 4989600.

The previous prime is 11642419. The next prime is 11642429. The reversal of 11642428 is 82424611.

11642428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

11642428 is an admirable number.

It is a super-2 number, since 2×11642428² = 271092259470368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 415801 = 11642428 / (1 + 1 + 6 + 4 + 2 + 4 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 11642396 and 11642405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11642429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207873 + ... + 207928.

Almost surely, 2^11642428 is an apocalyptic number.

It is an amenable number.

11642428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11642428 is a wasteful number, since it uses less digits than its factorization.

11642428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415812 (or 415810 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 11642428 is about 3412.1002329943. The cubic root of 11642428 is about 226.6458929443.

The spelling of 11642428 in words is "eleven million, six hundred forty-two thousand, four hundred twenty-eight".