3612239028 has 18 divisors (see below), whose sum is σ = 9130937634. Its totient is φ = 1204079664.

The previous prime is 3612239027. The next prime is 3612239047. The reversal of 3612239028 is 8209322163.

3612239028 is a `hidden beast` number, since 3 + 612 + 2 + 39 + 0 + 2 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2045029284 + 1567209744 = 45222^2 + 39588^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 100339973 = 3612239028 / (3 + 6 + 1 + 2 + 2 + 3 + 9 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 3612238983 and 3612239001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3612239023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50169951 + ... + 50170022.

It is an arithmetic number, because the mean of its divisors is an integer number (507274313).

Almost surely, 2^3612239028 is an apocalyptic number.

It is an amenable number.

3612239028 is an abundant number, since it is smaller than the sum of its proper divisors (5518698606).

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

3612239028 is a wasteful number, since it uses less digits than its factorization.

3612239028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100339983 (or 100339978 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3612239028 is about 60101.9053608120. The cubic root of 3612239028 is about 1534.3537303561.

The spelling of 3612239028 in words is "three billion, six hundred twelve million, two hundred thirty-nine thousand, twenty-eight".