1980400222 has 8 divisors (see below), whose sum is σ = 2971839672. Its totient is φ = 989787000.

The previous prime is 1980400207. The next prime is 1980400243. The reversal of 1980400222 is 2220040891.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200529 + ... + 210172.

It is an arithmetic number, because the mean of its divisors is an integer number (371479959).

Almost surely, 2^1980400222 is an apocalyptic number.

1980400222 is a deficient number, since it is larger than the sum of its proper divisors (991439450).

1980400222 is a wasteful number, since it uses less digits than its factorization.

1980400222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413114.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1980400222 is about 44501.6878556308. The cubic root of 1980400222 is about 1255.7918362843.

The spelling of 1980400222 in words is "one billion, nine hundred eighty million, four hundred thousand, two hundred twenty-two".