1992550220 has 24 divisors (see below), whose sum is σ = 4225789008. Its totient is φ = 789128000.

The previous prime is 1992550201. The next prime is 1992550253. The reversal of 1992550220 is 220552991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491186 + ... + 495225.

It is an arithmetic number, because the mean of its divisors is an integer number (176074542).

Almost surely, 2^1992550220 is an apocalyptic number.

1992550220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1992550220 is an abundant number, since it is smaller than the sum of its proper divisors (2233238788).

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

1992550220 is a wasteful number, since it uses less digits than its factorization.

1992550220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986521 (or 986519 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 1992550220 is about 44637.9907701948. The cubic root of 1992550220 is about 1258.3547477412.

The spelling of 1992550220 in words is "one billion, nine hundred ninety-two million, five hundred fifty thousand, two hundred twenty".