992203840 has 112 divisors (see below), whose sum is σ = 2479560192. Its totient is φ = 377726976.

The previous prime is 992203811. The next prime is 992203843. The reversal of 992203840 is 48302299.

It is a super-2 number, since 2×992203840² = 1968936920221491200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 992203840.

It is not an unprimeable number, because it can be changed into a prime (992203843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555589 + ... + 557371.

Almost surely, 2^992203840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 992203840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239780096).

992203840 is an abundant number, since it is smaller than the sum of its proper divisors (1487356352).

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

992203840 is a wasteful number, since it uses less digits than its factorization.

992203840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884 (or 1874 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 992203840 is about 31499.2672930657. The cubic root of 992203840 is about 997.3944972514.

The spelling of 992203840 in words is "nine hundred ninety-two million, two hundred three thousand, eight hundred forty".