2220646042 has 8 divisors (see below), whose sum is σ = 3345906816. Its totient is φ = 1105343772.

The previous prime is 2220646039. The next prime is 2220646049. The reversal of 2220646042 is 2406460222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2220646042.

It is not an unprimeable number, because it can be changed into a prime (2220646049) 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, 2489068 + ... + 2489959.

It is an arithmetic number, because the mean of its divisors is an integer number (418238352).

Almost surely, 2^2220646042 is an apocalyptic number.

2220646042 is a deficient number, since it is larger than the sum of its proper divisors (1125260774).

2220646042 is a wasteful number, since it uses less digits than its factorization.

2220646042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979252.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 2220646042 is about 47123.7311977734. The cubic root of 2220646042 is about 1304.6472805693.

The spelling of 2220646042 in words is "two billion, two hundred twenty million, six hundred forty-six thousand, forty-two".