992215872 has 224 divisors, whose sum is σ = 3140659200. Its totient is φ = 306187776.

The previous prime is 992215871. The next prime is 992215879. The reversal of 992215872 is 278512299.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992215871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1542783 + ... + 1543425.

It is an arithmetic number, because the mean of its divisors is an integer number (14020800).

Almost surely, 2^992215872 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 992215872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1570329600).

992215872 is an abundant number, since it is smaller than the sum of its proper divisors (2148443328).

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

992215872 is a wasteful number, since it uses less digits than its factorization.

992215872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 714 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 992215872 is about 31499.4582810562. The cubic root of 992215872 is about 997.3985288833.

The spelling of 992215872 in words is "nine hundred ninety-two million, two hundred fifteen thousand, eight hundred seventy-two".