1790222220 has 36 divisors (see below), whose sum is σ = 5430341280. Its totient is φ = 477392544.

The previous prime is 1790222219. The next prime is 1790222221. The reversal of 1790222220 is 222220971.

It is an interprime number because it is at equal distance from previous prime (1790222219) and next prime (1790222221).

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

It is not an unprimeable number, because it can be changed into a prime (1790222221) 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 11 ways as a sum of consecutive naturals, for example, 4972660 + ... + 4973019.

Almost surely, 2^1790222220 is an apocalyptic number.

1790222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1790222220 is an abundant number, since it is smaller than the sum of its proper divisors (3640119060).

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

1790222220 is a wasteful number, since it uses less digits than its factorization.

1790222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9945694 (or 9945689 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1790222220 is about 42311.0177140659. The cubic root of 1790222220 is about 1214.2337901409.

The spelling of 1790222220 in words is "one billion, seven hundred ninety million, two hundred twenty-two thousand, two hundred twenty".