183212428 has 12 divisors (see below), whose sum is σ = 366424912. Its totient is φ = 78519600.

The previous prime is 183212423. The next prime is 183212443. The reversal of 183212428 is 824212381.

It is a happy number.

183212428 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 183212428.

It is not an unprimeable number, because it can be changed into a prime (183212423) 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, 3271623 + ... + 3271678.

Almost surely, 2^183212428 is an apocalyptic number.

It is an amenable number.

183212428 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.

183212428 is a wasteful number, since it uses less digits than its factorization.

183212428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543312 (or 6543310 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 183212428 is about 13535.5985460562. The cubic root of 183212428 is about 567.9607317626.

The spelling of 183212428 in words is "one hundred eighty-three million, two hundred twelve thousand, four hundred twenty-eight".