220143996 has 18 divisors (see below), whose sum is σ = 556475192. Its totient is φ = 73381320.

The previous prime is 220143991. The next prime is 220143997. The reversal of 220143996 is 699341022.

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: 6115111 = 220143996 / (2 + 2 + 0 + 1 + 4 + 3 + 9 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 220143996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220143991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3057520 + ... + 3057591.

Almost surely, 2^220143996 is an apocalyptic number.

It is an amenable number.

220143996 is an abundant number, since it is smaller than the sum of its proper divisors (336331196).

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

220143996 is a wasteful number, since it uses less digits than its factorization.

220143996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115121 (or 6115116 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 220143996 is about 14837.2502843350. The cubic root of 220143996 is about 603.8127535302.

The spelling of 220143996 in words is "two hundred twenty million, one hundred forty-three thousand, nine hundred ninety-six".