3640018222 has 4 divisors (see below), whose sum is σ = 5460027336. Its totient is φ = 1820009110.

The previous prime is 3640018183. The next prime is 3640018243. The reversal of 3640018222 is 2228100463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2228100463 = 15299 ⋅145637.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 910004554 + ... + 910004557.

It is an arithmetic number, because the mean of its divisors is an integer number (1365006834).

Almost surely, 2^3640018222 is an apocalyptic number.

3640018222 is a deficient number, since it is larger than the sum of its proper divisors (1820009114).

3640018222 is a wasteful number, since it uses less digits than its factorization.

3640018222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820009113.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 3640018222 is about 60332.5635291589. The cubic root of 3640018222 is about 1538.2769030816.

Adding to 3640018222 its reverse (2228100463), we get a palindrome (5868118685).

The spelling of 3640018222 in words is "three billion, six hundred forty million, eighteen thousand, two hundred twenty-two".