2238561612 has 36 divisors (see below), whose sum is σ = 6466956496. Its totient is φ = 639588960.

The previous prime is 2238561599. The next prime is 2238561623. The reversal of 2238561612 is 2161658322.

2238561612 is a `hidden beast` number, since 2 + 2 + 38 + 5 + 6 + 1 + 612 = 666.

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

It is a super-2 number, since 2×2238561612² = 10022316181440077088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4441339 + ... + 4441842.

Almost surely, 2^2238561612 is an apocalyptic number.

It is an amenable number.

2238561612 is an abundant number, since it is smaller than the sum of its proper divisors (4228394884).

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

2238561612 is a wasteful number, since it uses less digits than its factorization.

2238561612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8883198 (or 8883193 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 2238561612 is about 47313.4400778468. The cubic root of 2238561612 is about 1308.1464008620.

The spelling of 2238561612 in words is "two billion, two hundred thirty-eight million, five hundred sixty-one thousand, six hundred twelve".