992143386 has 96 divisors (see below), whose sum is σ = 2388177792. Its totient is φ = 295747200.

The previous prime is 992143337. The next prime is 992143391. The reversal of 992143386 is 683341299.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1519036 + ... + 1519688.

It is an arithmetic number, because the mean of its divisors is an integer number (24876852).

Almost surely, 2^992143386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 992143386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1194088896).

992143386 is an abundant number, since it is smaller than the sum of its proper divisors (1396034406).

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

992143386 is a wasteful number, since it uses less digits than its factorization.

992143386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 865 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 992143386 is about 31498.3076688256. The cubic root of 992143386 is about 997.3742400861.

It can be divided in two parts, 99 and 2143386, that added together give a triangular number (2143485 = T₂₀₇₀).

The spelling of 992143386 in words is "nine hundred ninety-two million, one hundred forty-three thousand, three hundred eighty-six".