992852640 has 480 divisors, whose sum is σ = 3872727936. Its totient is φ = 238049280.

The previous prime is 992852639. The next prime is 992852647. The reversal of 992852640 is 46258299.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (992852647) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11962039 + ... + 11962121.

Almost surely, 2^992852640 is an apocalyptic number.

992852640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 992852640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936363968).

992852640 is an abundant number, since it is smaller than the sum of its proper divisors (2879875296).

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

992852640 is a wasteful number, since it uses less digits than its factorization.

992852640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 992852640 is about 31509.5642622998. The cubic root of 992852640 is about 997.6118479365.

The spelling of 992852640 in words is "nine hundred ninety-two million, eight hundred fifty-two thousand, six hundred forty".