1990223411 has 6 divisors (see below), whose sum is σ = 2171314236. Its totient is φ = 1809159500.

The previous prime is 1990223407. The next prime is 1990223449. The reversal of 1990223411 is 1143220991.

It is not a de Polignac number, because 1990223411 - 2² = 1990223407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1990223491) 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, 141236 + ... + 154686.

It is an arithmetic number, because the mean of its divisors is an integer number (361885706).

Almost surely, 2^1990223411 is an apocalyptic number.

1990223411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1990223411 is a deficient number, since it is larger than the sum of its proper divisors (181090825).

1990223411 is an frugal number, since it uses more digits than its factorization.

1990223411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26913 (or 13462 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1990223411 is about 44611.9200550705. The cubic root of 1990223411 is about 1257.8647405848.

The spelling of 1990223411 in words is "one billion, nine hundred ninety million, two hundred twenty-three thousand, four hundred eleven".