1992247488 has 840 divisors, whose sum is σ = 8072469504. Its totient is φ = 479001600.

The previous prime is 1992247483. The next prime is 1992247501. The reversal of 1992247488 is 8847422991.

1992247488 is a `hidden beast` number, since 1 + 9 + 92 + 2 + 474 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1992247483) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 64266033 + ... + 64266063.

Almost surely, 2^1992247488 is an apocalyptic number.

1992247488 is a gapful number since it is divisible by the number (18) 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 1992247488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4036234752).

1992247488 is an abundant number, since it is smaller than the sum of its proper divisors (6080222016).

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

1992247488 is a wasteful number, since it uses less digits than its factorization.

1992247488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 77 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 1992247488 is about 44634.5996733476. The cubic root of 1992247488 is about 1258.2910164251.

The spelling of 1992247488 in words is "one billion, nine hundred ninety-two million, two hundred forty-seven thousand, four hundred eighty-eight".